5 Changes between 1.0.0 and 1.1.0 [xx XXX xxxx]
7 *) Add -trusted_first option which attempts to find certificates in the
8 trusted store even if an untrusted chain is also supplied.
11 *) Initial experimental support for explicitly trusted non-root CAs.
12 OpenSSL still tries to build a complete chain to a root but if an
13 intermediate CA has a trust setting included that is used. The first
14 setting is used: whether to trust or reject.
17 *) New -verify_name option in command line utilities to set verification
21 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
22 Add CMAC pkey methods.
25 *) Experiemental regnegotiation in s_server -www mode. If the client
26 browses /reneg connection is renegotiated. If /renegcert it is
27 renegotiated requesting a certificate.
30 *) Add an "external" session cache for debugging purposes to s_server. This
31 should help trace issues which normally are only apparent in deployed
32 multi-process servers.
35 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
36 a few changes are required:
38 Add SSL_OP_NO_TLSv1_1 flag.
40 Update version checking logic to handle version 1.1.
41 Add explicit IV handling (ported from DTLS code).
42 Add command line options to s_client/s_server.
45 *) Experiemental password based recipient info support for CMS library:
49 *) Split password based encryption into PBES2 and PBKDF2 functions. This
50 neatly separates the code into cipher and PBE sections and is required
51 for some algorithms that split PBES2 into separate pieces (such as
55 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
56 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
57 BIO_set_cipher() and some obscure PEM functions were changed so they
58 can now return an error. The RAND changes required a change to the
59 RAND_METHOD structure.
62 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
63 a gcc attribute to warn if the result of a function is ignored. This
64 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
65 whose return value is often ignored.
68 Changes between 0.9.8m and 1.0.0 [25 Feb 2010]
70 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
71 context. The operation can be customised via the ctrl mechanism in
72 case ENGINEs want to include additional functionality.
75 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
78 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
79 output hashes compatible with older versions of OpenSSL.
80 [Willy Weisz <weisz@vcpc.univie.ac.at>]
82 *) Fix compression algorithm handling: if resuming a session use the
83 compression algorithm of the resumed session instead of determining
84 it from client hello again. Don't allow server to change algorithm.
87 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
88 change when encrypting or decrypting.
91 *) Add load_crls() function to apps tidying load_certs() too. Add option
92 to verify utility to allow additional CRLs to be included.
95 *) Update OCSP request code to permit adding custom headers to the request:
96 some responders need this.
99 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
101 [Julia Lawall <julia@diku.dk>]
103 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
104 needlessly dereferenced structures, used obsolete functions and
105 didn't handle all updated verify codes correctly.
108 *) Disable MD2 in the default configuration.
111 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
112 indicate the initial BIO being pushed or popped. This makes it possible
113 to determine whether the BIO is the one explicitly called or as a result
114 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
115 it handles reference counts correctly and doesn't zero out the I/O bio
116 when it is not being explicitly popped. WARNING: applications which
117 included workarounds for the old buggy behaviour will need to be modified
118 or they could free up already freed BIOs.
121 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
122 renaming to all platforms (within the 0.9.8 branch, this was
123 done conditionally on Netware platforms to avoid a name clash).
124 [Guenter <lists@gknw.net>]
126 *) Add ECDHE and PSK support to DTLS.
127 [Michael Tuexen <tuexen@fh-muenster.de>]
129 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
133 *) Add "missing" function EVP_MD_flags() (without this the only way to
134 retrieve a digest flags is by accessing the structure directly. Update
135 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
136 or cipher is registered as in the "from" argument. Print out all
137 registered digests in the dgst usage message instead of manually
138 attempting to work them out.
141 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
142 this allows the use of compression and extensions. Change default cipher
143 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
144 by default unless an application cipher string requests it.
147 *) Alter match criteria in PKCS12_parse(). It used to try to use local
148 key ids to find matching certificates and keys but some PKCS#12 files
149 don't follow the (somewhat unwritten) rules and this strategy fails.
150 Now just gather all certificates together and the first private key
151 then look for the first certificate that matches the key.
154 *) Support use of registered digest and cipher names for dgst and cipher
155 commands instead of having to add each one as a special case. So now
162 openssl dgst -sha256 foo
164 and this works for ENGINE based algorithms too.
168 *) Update Gost ENGINE to support parameter files.
169 [Victor B. Wagner <vitus@cryptocom.ru>]
171 *) Support GeneralizedTime in ca utility.
172 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
174 *) Enhance the hash format used for certificate directory links. The new
175 form uses the canonical encoding (meaning equivalent names will work
176 even if they aren't identical) and uses SHA1 instead of MD5. This form
177 is incompatible with the older format and as a result c_rehash should
178 be used to rebuild symbolic links.
181 *) Make PKCS#8 the default write format for private keys, replacing the
182 traditional format. This form is standardised, more secure and doesn't
183 include an implicit MD5 dependency.
186 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
187 committed to OpenSSL should pass this lot as a minimum.
190 *) Add session ticket override functionality for use by EAP-FAST.
191 [Jouni Malinen <j@w1.fi>]
193 *) Modify HMAC functions to return a value. Since these can be implemented
194 in an ENGINE errors can occur.
197 *) Type-checked OBJ_bsearch_ex.
200 *) Type-checked OBJ_bsearch. Also some constification necessitated
201 by type-checking. Still to come: TXT_DB, bsearch(?),
202 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
206 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
207 seconds to a tm structure directly, instead of going through OS
208 specific date routines. This avoids any issues with OS routines such
209 as the year 2038 bug. New *_adj() functions for ASN1 time structures
210 and X509_time_adj_ex() to cover the extended range. The existing
211 X509_time_adj() is still usable and will no longer have any date issues.
214 *) Delta CRL support. New use deltas option which will attempt to locate
215 and search any appropriate delta CRLs available.
217 This work was sponsored by Google.
220 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
221 code and add additional score elements. Validate alternate CRL paths
222 as part of the CRL checking and indicate a new error "CRL path validation
223 error" in this case. Applications wanting additional details can use
224 the verify callback and check the new "parent" field. If this is not
225 NULL CRL path validation is taking place. Existing applications wont
226 see this because it requires extended CRL support which is off by
229 This work was sponsored by Google.
232 *) Support for freshest CRL extension.
234 This work was sponsored by Google.
237 *) Initial indirect CRL support. Currently only supported in the CRLs
238 passed directly and not via lookup. Process certificate issuer
239 CRL entry extension and lookup CRL entries by bother issuer name
240 and serial number. Check and process CRL issuer entry in IDP extension.
242 This work was sponsored by Google.
245 *) Add support for distinct certificate and CRL paths. The CRL issuer
246 certificate is validated separately in this case. Only enabled if
247 an extended CRL support flag is set: this flag will enable additional
248 CRL functionality in future.
250 This work was sponsored by Google.
253 *) Add support for policy mappings extension.
255 This work was sponsored by Google.
258 *) Fixes to pathlength constraint, self issued certificate handling,
259 policy processing to align with RFC3280 and PKITS tests.
261 This work was sponsored by Google.
264 *) Support for name constraints certificate extension. DN, email, DNS
265 and URI types are currently supported.
267 This work was sponsored by Google.
270 *) To cater for systems that provide a pointer-based thread ID rather
271 than numeric, deprecate the current numeric thread ID mechanism and
272 replace it with a structure and associated callback type. This
273 mechanism allows a numeric "hash" to be extracted from a thread ID in
274 either case, and on platforms where pointers are larger than 'long',
275 mixing is done to help ensure the numeric 'hash' is usable even if it
276 can't be guaranteed unique. The default mechanism is to use "&errno"
277 as a pointer-based thread ID to distinguish between threads.
279 Applications that want to provide their own thread IDs should now use
280 CRYPTO_THREADID_set_callback() to register a callback that will call
281 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
283 Note that ERR_remove_state() is now deprecated, because it is tied
284 to the assumption that thread IDs are numeric. ERR_remove_state(0)
285 to free the current thread's error state should be replaced by
286 ERR_remove_thread_state(NULL).
288 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
289 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
290 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
291 application was previously providing a numeric thread callback that
292 was inappropriate for distinguishing threads, then uniqueness might
293 have been obtained with &errno that happened immediately in the
294 intermediate development versions of OpenSSL; this is no longer the
295 case, the numeric thread callback will now override the automatic use
297 [Geoff Thorpe, with help from Bodo Moeller]
299 *) Initial support for different CRL issuing certificates. This covers a
300 simple case where the self issued certificates in the chain exist and
301 the real CRL issuer is higher in the existing chain.
303 This work was sponsored by Google.
306 *) Removed effectively defunct crypto/store from the build.
309 *) Revamp of STACK to provide stronger type-checking. Still to come:
310 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
311 ASN1_STRING, CONF_VALUE.
314 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
315 RAM on SSL connections. This option can save about 34k per idle SSL.
318 *) Revamp of LHASH to provide stronger type-checking. Still to come:
319 STACK, TXT_DB, bsearch, qsort.
322 *) Initial support for Cryptographic Message Syntax (aka CMS) based
323 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
324 support for data, signedData, compressedData, digestedData and
325 encryptedData, envelopedData types included. Scripts to check against
326 RFC4134 examples draft and interop and consistency checks of many
327 content types and variants.
330 *) Add options to enc utility to support use of zlib compression BIO.
333 *) Extend mk1mf to support importing of options and assembly language
334 files from Configure script, currently only included in VC-WIN32.
335 The assembly language rules can now optionally generate the source
336 files from the associated perl scripts.
339 *) Implement remaining functionality needed to support GOST ciphersuites.
340 Interop testing has been performed using CryptoPro implementations.
341 [Victor B. Wagner <vitus@cryptocom.ru>]
343 *) s390x assembler pack.
346 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
350 *) Implement Opaque PRF Input TLS extension as specified in
351 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
352 official specification yet and no extension type assignment by
353 IANA exists, this extension (for now) will have to be explicitly
354 enabled when building OpenSSL by providing the extension number
355 to use. For example, specify an option
357 -DTLSEXT_TYPE_opaque_prf_input=0x9527
359 to the "config" or "Configure" script to enable the extension,
360 assuming extension number 0x9527 (which is a completely arbitrary
361 and unofficial assignment based on the MD5 hash of the Internet
362 Draft). Note that by doing so, you potentially lose
363 interoperability with other TLS implementations since these might
364 be using the same extension number for other purposes.
366 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
367 opaque PRF input value to use in the handshake. This will create
368 an interal copy of the length-'len' string at 'src', and will
369 return non-zero for success.
371 To get more control and flexibility, provide a callback function
374 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
375 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
379 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
382 Callback function 'cb' will be called in handshakes, and is
383 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
384 Argument 'arg' is for application purposes (the value as given to
385 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
386 be provided to the callback function). The callback function
387 has to return non-zero to report success: usually 1 to use opaque
388 PRF input just if possible, or 2 to enforce use of the opaque PRF
389 input. In the latter case, the library will abort the handshake
390 if opaque PRF input is not successfully negotiated.
392 Arguments 'peerinput' and 'len' given to the callback function
393 will always be NULL and 0 in the case of a client. A server will
394 see the client's opaque PRF input through these variables if
395 available (NULL and 0 otherwise). Note that if the server
396 provides an opaque PRF input, the length must be the same as the
397 length of the client's opaque PRF input.
399 Note that the callback function will only be called when creating
400 a new session (session resumption can resume whatever was
401 previously negotiated), and will not be called in SSL 2.0
402 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
403 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
404 for applications that need to enforce opaque PRF input.
408 *) Update ssl code to support digests other than SHA1+MD5 for handshake
411 [Victor B. Wagner <vitus@cryptocom.ru>]
413 *) Add RFC4507 support to OpenSSL. This includes the corrections in
414 RFC4507bis. The encrypted ticket format is an encrypted encoded
415 SSL_SESSION structure, that way new session features are automatically
418 If a client application caches session in an SSL_SESSION structure
419 support is transparent because tickets are now stored in the encoded
422 The SSL_CTX structure automatically generates keys for ticket
423 protection in servers so again support should be possible
424 with no application modification.
426 If a client or server wishes to disable RFC4507 support then the option
427 SSL_OP_NO_TICKET can be set.
429 Add a TLS extension debugging callback to allow the contents of any client
430 or server extensions to be examined.
432 This work was sponsored by Google.
435 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
436 OpenSSL should now compile cleanly on gcc 4.2
437 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
439 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
440 support including streaming MAC support: this is required for GOST
442 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
444 *) Add option -stream to use PKCS#7 streaming in smime utility. New
445 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
446 to output in BER and PEM format.
449 *) Experimental support for use of HMAC via EVP_PKEY interface. This
450 allows HMAC to be handled via the EVP_DigestSign*() interface. The
451 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
452 ENGINE support for HMAC keys which are unextractable. New -mac and
453 -macopt options to dgst utility.
456 *) New option -sigopt to dgst utility. Update dgst to use
457 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
458 alternative signing paramaters such as X9.31 or PSS in the dgst
462 *) Change ssl_cipher_apply_rule(), the internal function that does
463 the work each time a ciphersuite string requests enabling
464 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
465 removing ("!foo+bar") a class of ciphersuites: Now it maintains
466 the order of disabled ciphersuites such that those ciphersuites
467 that most recently went from enabled to disabled not only stay
468 in order with respect to each other, but also have higher priority
469 than other disabled ciphersuites the next time ciphersuites are
472 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
473 the same ciphersuites as with "HIGH" alone, but in a specific
474 order where the PSK ciphersuites come first (since they are the
475 most recently disabled ciphersuites when "HIGH" is parsed).
477 Also, change ssl_create_cipher_list() (using this new
478 funcionality) such that between otherwise identical
479 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
483 *) Change ssl_create_cipher_list() so that it automatically
484 arranges the ciphersuites in reasonable order before starting
485 to process the rule string. Thus, the definition for "DEFAULT"
486 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
487 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
488 This makes it much easier to arrive at a reasonable default order
489 in applications for which anonymous ciphers are OK (meaning
490 that you can't actually use DEFAULT).
491 [Bodo Moeller; suggested by Victor Duchovni]
493 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
494 processing) into multiple integers instead of setting
495 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
496 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
497 (These masks as well as the individual bit definitions are hidden
498 away into the non-exported interface ssl/ssl_locl.h, so this
499 change to the definition of the SSL_CIPHER structure shouldn't
500 affect applications.) This give us more bits for each of these
501 categories, so there is no longer a need to coagulate AES128 and
502 AES256 into a single algorithm bit, and to coagulate Camellia128
503 and Camellia256 into a single algorithm bit, which has led to all
506 Thus, among other things, the kludge introduced in 0.9.7m and
507 0.9.8e for masking out AES256 independently of AES128 or masking
508 out Camellia256 independently of AES256 is not needed here in 0.9.9.
510 With the change, we also introduce new ciphersuite aliases that
511 so far were missing: "AES128", "AES256", "CAMELLIA128", and
515 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
516 Use the leftmost N bytes of the signature input if the input is
517 larger than the prime q (with N being the size in bytes of q).
520 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
521 it yet and it is largely untested.
524 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
527 *) Initial incomplete changes to avoid need for function casts in OpenSSL
528 some compilers (gcc 4.2 and later) reject their use. Safestack is
529 reimplemented. Update ASN1 to avoid use of legacy functions.
532 *) Win32/64 targets are linked with Winsock2.
535 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
536 to external functions. This can be used to increase CRL handling
537 efficiency especially when CRLs are very large by (for example) storing
538 the CRL revoked certificates in a database.
541 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
542 new CRLs added to a directory can be used. New command line option
543 -verify_return_error to s_client and s_server. This causes real errors
544 to be returned by the verify callback instead of carrying on no matter
545 what. This reflects the way a "real world" verify callback would behave.
548 *) GOST engine, supporting several GOST algorithms and public key formats.
549 Kindly donated by Cryptocom.
552 *) Partial support for Issuing Distribution Point CRL extension. CRLs
553 partitioned by DP are handled but no indirect CRL or reason partitioning
554 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
555 selected via a scoring technique which handles IDP and AKID in CRLs.
558 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
559 will ultimately be used for all verify operations: this will remove the
560 X509_STORE dependency on certificate verification and allow alternative
561 lookup methods. X509_STORE based implementations of these two callbacks.
564 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
565 Modify get_crl() to find a valid (unexpired) CRL if possible.
568 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
569 this would be called X509_CRL_cmp() but that name is already used by
570 a function that just compares CRL issuer names. Cache several CRL
571 extensions in X509_CRL structure and cache CRLDP in X509.
574 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
575 this maps equivalent X509_NAME structures into a consistent structure.
576 Name comparison can then be performed rapidly using memcmp().
579 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
583 *) Allow digests to supply their own micalg string for S/MIME type using
584 the ctrl EVP_MD_CTRL_MICALG.
587 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
588 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
589 ctrl. It can then customise the structure before and/or after signing
593 *) New function OBJ_add_sigid() to allow application defined signature OIDs
594 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
595 to free up any added signature OIDs.
598 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
599 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
600 digest and cipher tables. New options added to openssl utility:
601 list-message-digest-algorithms and list-cipher-algorithms.
604 *) Change the array representation of binary polynomials: the list
605 of degrees of non-zero coefficients is now terminated with -1.
606 Previously it was terminated with 0, which was also part of the
607 value; thus, the array representation was not applicable to
608 polynomials where t^0 has coefficient zero. This change makes
609 the array representation useful in a more general context.
612 *) Various modifications and fixes to SSL/TLS cipher string
613 handling. For ECC, the code now distinguishes between fixed ECDH
614 with RSA certificates on the one hand and with ECDSA certificates
615 on the other hand, since these are separate ciphersuites. The
616 unused code for Fortezza ciphersuites has been removed.
618 For consistency with EDH, ephemeral ECDH is now called "EECDH"
619 (not "ECDHE"). For consistency with the code for DH
620 certificates, use of ECDH certificates is now considered ECDH
621 authentication, not RSA or ECDSA authentication (the latter is
622 merely the CA's signing algorithm and not actively used in the
625 The temporary ciphersuite alias "ECCdraft" is no longer
626 available, and ECC ciphersuites are no longer excluded from "ALL"
627 and "DEFAULT". The following aliases now exist for RFC 4492
628 ciphersuites, most of these by analogy with the DH case:
630 kECDHr - ECDH cert, signed with RSA
631 kECDHe - ECDH cert, signed with ECDSA
632 kECDH - ECDH cert (signed with either RSA or ECDSA)
633 kEECDH - ephemeral ECDH
634 ECDH - ECDH cert or ephemeral ECDH
640 AECDH - anonymous ECDH
641 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
645 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
646 Use correct micalg parameters depending on digest(s) in signed message.
649 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
650 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
653 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
654 an engine to register a method. Add ENGINE lookups for methods and
655 functional reference processing.
658 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
659 EVP_{Sign,Verify}* which allow an application to customise the signature
663 *) New -resign option to smime utility. This adds one or more signers
664 to an existing PKCS#7 signedData structure. Also -md option to use an
665 alternative message digest algorithm for signing.
668 *) Tidy up PKCS#7 routines and add new functions to make it easier to
669 create PKCS7 structures containing multiple signers. Update smime
670 application to support multiple signers.
673 *) New -macalg option to pkcs12 utility to allow setting of an alternative
677 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
678 Reorganize PBE internals to lookup from a static table using NIDs,
679 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
680 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
681 PRF which will be automatically used with PBES2.
684 *) Replace the algorithm specific calls to generate keys in "req" with the
688 *) Update PKCS#7 enveloped data routines to use new API. This is now
689 supported by any public key method supporting the encrypt operation. A
690 ctrl is added to allow the public key algorithm to examine or modify
691 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
695 *) Add a ctrl to asn1 method to allow a public key algorithm to express
696 a default digest type to use. In most cases this will be SHA1 but some
697 algorithms (such as GOST) need to specify an alternative digest. The
698 return value indicates how strong the prefernce is 1 means optional and
699 2 is mandatory (that is it is the only supported type). Modify
700 ASN1_item_sign() to accept a NULL digest argument to indicate it should
701 use the default md. Update openssl utilities to use the default digest
702 type for signing if it is not explicitly indicated.
705 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
706 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
707 signing method from the key type. This effectively removes the link
708 between digests and public key types.
711 *) Add an OID cross reference table and utility functions. Its purpose is to
712 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
713 rsaEncryption. This will allow some of the algorithm specific hackery
714 needed to use the correct OID to be removed.
717 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
718 structures for PKCS7_sign(). They are now set up by the relevant public
722 *) Add provisional EC pkey method with support for ECDSA and ECDH.
725 *) Add support for key derivation (agreement) in the API, DH method and
729 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
730 public and private key formats. As a side effect these add additional
731 command line functionality not previously available: DSA signatures can be
732 generated and verified using pkeyutl and DH key support and generation in
737 [Oliver Tappe <zooey@hirschkaefer.de>]
739 *) New make target "install_html_docs" installs HTML renditions of the
741 [Oliver Tappe <zooey@hirschkaefer.de>]
743 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
744 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
745 support key and parameter generation and add initial key generation
746 functionality for RSA.
749 *) Add functions for main EVP_PKEY_method operations. The undocumented
750 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
751 EVP_PKEY_{encrypt,decrypt}_old.
754 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
755 key API, doesn't do much yet.
758 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
759 public key algorithms. New option to openssl utility:
760 "list-public-key-algorithms" to print out info.
763 *) Implement the Supported Elliptic Curves Extension for
764 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
767 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
768 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
771 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
772 utilities such as rsa, dsa, dsaparam etc except they process any key
776 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
777 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
778 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
782 *) Initial support for pluggable public key ASN1.
783 De-spaghettify the public key ASN1 handling. Move public and private
784 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
785 algorithm specific handling to a single module within the relevant
786 algorithm directory. Add functions to allow (near) opaque processing
787 of public and private key structures.
790 *) Implement the Supported Point Formats Extension for
791 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
794 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
795 for the psk identity [hint] and the psk callback functions to the
796 SSL_SESSION, SSL and SSL_CTX structure.
799 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
803 SSL_CTX_use_psk_identity_hint
804 SSL_get_psk_identity_hint
806 SSL_use_psk_identity_hint
808 [Mika Kousa and Pasi Eronen of Nokia Corporation]
810 *) Add RFC 3161 compliant time stamp request creation, response generation
811 and response verification functionality.
812 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
814 *) Add initial support for TLS extensions, specifically for the server_name
815 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
816 have new members for a host name. The SSL data structure has an
817 additional member SSL_CTX *initial_ctx so that new sessions can be
818 stored in that context to allow for session resumption, even after the
819 SSL has been switched to a new SSL_CTX in reaction to a client's
820 server_name extension.
822 New functions (subject to change):
825 SSL_get_servername_type()
828 New CTRL codes and macros (subject to change):
830 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
831 - SSL_CTX_set_tlsext_servername_callback()
832 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
833 - SSL_CTX_set_tlsext_servername_arg()
834 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
836 openssl s_client has a new '-servername ...' option.
838 openssl s_server has new options '-servername_host ...', '-cert2 ...',
839 '-key2 ...', '-servername_fatal' (subject to change). This allows
840 testing the HostName extension for a specific single host name ('-cert'
841 and '-key' remain fallbacks for handshakes without HostName
842 negotiation). If the unrecogninzed_name alert has to be sent, this by
843 default is a warning; it becomes fatal with the '-servername_fatal'
846 [Peter Sylvester, Remy Allais, Christophe Renou]
848 *) Whirlpool hash implementation is added.
851 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
852 bn(64,32). Because of instruction set limitations it doesn't have
853 any negative impact on performance. This was done mostly in order
854 to make it possible to share assembler modules, such as bn_mul_mont
855 implementations, between 32- and 64-bit builds without hassle.
858 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
859 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
863 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
864 dedicated Montgomery multiplication procedure, is introduced.
865 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
866 "64-bit" performance on certain 32-bit targets.
869 *) New option SSL_OP_NO_COMP to disable use of compression selectively
870 in SSL structures. New SSL ctrl to set maximum send fragment size.
871 Save memory by seeting the I/O buffer sizes dynamically instead of
872 using the maximum available value.
875 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
876 in addition to the text details.
879 *) Very, very preliminary EXPERIMENTAL support for printing of general
880 ASN1 structures. This currently produces rather ugly output and doesn't
881 handle several customised structures at all.
884 *) Integrated support for PVK file format and some related formats such
885 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
886 these in the 'rsa' and 'dsa' utilities.
889 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
892 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
893 place for the (very old) "NETSCAPE" format certificates which are now
894 handled using new ASN1 code equivalents.
897 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
898 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
899 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
902 *) Modify CRL distribution points extension code to print out previously
903 unsupported fields. Enhance extension setting code to allow setting of
907 *) Add print and set support for Issuing Distribution Point CRL extension.
910 *) Change 'Configure' script to enable Camellia by default.
913 Changes between 0.9.8l and 0.9.8m [xx XXX xxxx]
915 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
916 accommodate for stack sorting, always a write lock!).
919 *) On some versions of WIN32 Heap32Next is very slow. This can cause
920 excessive delays in the RAND_poll(): over a minute. As a workaround
921 include a time check in the inner Heap32Next loop too.
924 *) The code that handled flushing of data in SSL/TLS originally used the
925 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
926 the problem outlined in PR#1949. The fix suggested there however can
927 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
928 of Apache). So instead simplify the code to flush unconditionally.
929 This should be fine since flushing with no data to flush is a no op.
932 *) Handle TLS versions 2.0 and later properly and correctly use the
933 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
934 off ancient servers have a habit of sticking around for a while...
937 *) Modify compression code so it frees up structures without using the
938 ex_data callbacks. This works around a problem where some applications
939 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
940 restarting) then use compression (e.g. SSL with compression) later.
941 This results in significant per-connection memory leaks and
942 has caused some security issues including CVE-2008-1678 and
946 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
947 connect and renegotiate with servers which do not support RI.
948 Until RI is more widely deployed this option is enabled by default.
951 *) Add "missing" ssl ctrls to clear options and mode.
954 *) If client attempts to renegotiate and doesn't support RI respond with
955 a no_renegotiation alert as required by RFC5746. Some renegotiating
956 TLS clients will continue a connection gracefully when they receive
957 the alert. Unfortunately OpenSSL mishandled this alert and would hang
958 waiting for a server hello which it will never receive. Now we treat a
959 received no_renegotiation alert as a fatal error. This is because
960 applications requesting a renegotiation might well expect it to succeed
961 and would have no code in place to handle the server denying it so the
962 only safe thing to do is to terminate the connection.
965 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
966 peer supports secure renegotiation and 0 otherwise. Print out peer
967 renegotiation support in s_client/s_server.
970 *) Replace the highly broken and deprecated SPKAC certification method with
971 the updated NID creation version. This should correctly handle UTF8.
974 *) Implement RFC5746. Re-enable renegotiation but require the extension
975 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
976 turns out to be a bad idea. It has been replaced by
977 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
978 SSL_CTX_set_options(). This is really not recommended unless you
979 know what you are doing.
980 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
982 *) Fixes to stateless session resumption handling. Use initial_ctx when
983 issuing and attempting to decrypt tickets in case it has changed during
984 servername handling. Use a non-zero length session ID when attempting
985 stateless session resumption: this makes it possible to determine if
986 a resumption has occurred immediately after receiving server hello
987 (several places in OpenSSL subtly assume this) instead of later in
991 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
992 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
993 fixes for a few places where the return code is not checked
995 [Julia Lawall <julia@diku.dk>]
997 *) Add --strict-warnings option to Configure script to include devteam
998 warnings in other configurations.
1001 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1002 makes it possible to install openssl libraries in locations which
1003 have names other than "lib", for example "/usr/lib64" which some
1005 [Steve Henson, based on patch from Jeremy Utley]
1007 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1008 X690 8.9.12 and can produce some misleading textual output of OIDs.
1009 [Steve Henson, reported by Dan Kaminsky]
1011 *) Delete MD2 from algorithm tables. This follows the recommendation in
1012 several standards that it is not used in new applications due to
1013 several cryptographic weaknesses. For binary compatibility reasons
1014 the MD2 API is still compiled in by default.
1017 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1021 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1022 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1024 [Guenter <lists@gknw.net>]
1026 *) Fix the server certificate chain building code to use X509_verify_cert(),
1027 it used to have an ad-hoc builder which was unable to cope with anything
1028 other than a simple chain.
1029 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1031 *) Don't check self signed certificate signatures in X509_verify_cert()
1032 by default (a flag can override this): it just wastes time without
1033 adding any security. As a useful side effect self signed root CAs
1034 with non-FIPS digests are now usable in FIPS mode.
1037 *) In dtls1_process_out_of_seq_message() the check if the current message
1038 is already buffered was missing. For every new message was memory
1039 allocated, allowing an attacker to perform an denial of service attack
1040 with sending out of seq handshake messages until there is no memory
1041 left. Additionally every future messege was buffered, even if the
1042 sequence number made no sense and would be part of another handshake.
1043 So only messages with sequence numbers less than 10 in advance will be
1044 buffered. (CVE-2009-1378)
1045 [Robin Seggelmann, discovered by Daniel Mentz]
1047 *) Records are buffered if they arrive with a future epoch to be
1048 processed after finishing the corresponding handshake. There is
1049 currently no limitation to this buffer allowing an attacker to perform
1050 a DOS attack with sending records with future epochs until there is no
1051 memory left. This patch adds the pqueue_size() function to detemine
1052 the size of a buffer and limits the record buffer to 100 entries.
1054 [Robin Seggelmann, discovered by Daniel Mentz]
1056 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1057 parent structure is freed. (CVE-2009-1379)
1060 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1061 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1064 [Ilya O. <vrghost@gmail.com>]
1066 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1068 *) Disable renegotiation completely - this fixes a severe security
1069 problem (CVE-2009-3555) at the cost of breaking all
1070 renegotiation. Renegotiation can be re-enabled by setting
1071 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1072 run-time. This is really not recommended unless you know what
1076 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1078 *) Don't set val to NULL when freeing up structures, it is freed up by
1079 underlying code. If sizeof(void *) > sizeof(long) this can result in
1080 zeroing past the valid field. (CVE-2009-0789)
1081 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1083 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1084 checked correctly. This would allow some invalid signed attributes to
1085 appear to verify correctly. (CVE-2009-0591)
1086 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1088 *) Reject UniversalString and BMPString types with invalid lengths. This
1089 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1090 a legal length. (CVE-2009-0590)
1093 *) Set S/MIME signing as the default purpose rather than setting it
1094 unconditionally. This allows applications to override it at the store
1098 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1099 to handle some structures.
1102 *) Improve efficiency of mem_gets: don't search whole buffer each time
1104 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1106 *) New -hex option for openssl rand.
1109 *) Print out UTF8String and NumericString when parsing ASN1.
1112 *) Support NumericString type for name components.
1115 *) Allow CC in the environment to override the automatically chosen
1116 compiler. Note that nothing is done to ensure flags work with the
1120 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1122 *) Properly check EVP_VerifyFinal() and similar return values
1124 [Ben Laurie, Bodo Moeller, Google Security Team]
1126 *) Enable TLS extensions by default.
1129 *) Allow the CHIL engine to be loaded, whether the application is
1130 multithreaded or not. (This does not release the developer from the
1131 obligation to set up the dynamic locking callbacks.)
1132 [Sander Temme <sander@temme.net>]
1134 *) Use correct exit code if there is an error in dgst command.
1135 [Steve Henson; problem pointed out by Roland Dirlewanger]
1137 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1138 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1141 *) Add experimental JPAKE support, including demo authentication in
1142 s_client and s_server.
1145 *) Set the comparison function in v3_addr_canonize().
1146 [Rob Austein <sra@hactrn.net>]
1148 *) Add support for XMPP STARTTLS in s_client.
1149 [Philip Paeps <philip@freebsd.org>]
1151 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1152 to ensure that even with this option, only ciphersuites in the
1153 server's preference list will be accepted. (Note that the option
1154 applies only when resuming a session, so the earlier behavior was
1155 just about the algorithm choice for symmetric cryptography.)
1158 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1160 *) Fix NULL pointer dereference if a DTLS server received
1161 ChangeCipherSpec as first record (CVE-2009-1386).
1164 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1165 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1168 *) The fix in 0.9.8c that supposedly got rid of unsafe
1169 double-checked locking was incomplete for RSA blinding,
1170 addressing just one layer of what turns out to have been
1171 doubly unsafe triple-checked locking.
1173 So now fix this for real by retiring the MONT_HELPER macro
1174 in crypto/rsa/rsa_eay.c.
1176 [Bodo Moeller; problem pointed out by Marius Schilder]
1178 *) Various precautionary measures:
1180 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1182 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1183 (NB: This would require knowledge of the secret session ticket key
1184 to exploit, in which case you'd be SOL either way.)
1186 - Change bn_nist.c so that it will properly handle input BIGNUMs
1187 outside the expected range.
1189 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1192 [Neel Mehta, Bodo Moeller]
1194 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1195 the load fails. Useful for distros.
1196 [Ben Laurie and the FreeBSD team]
1198 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1201 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1204 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1206 This work was sponsored by Logica.
1209 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1210 keystores. Support for SSL/TLS client authentication too.
1211 Not compiled unless enable-capieng specified to Configure.
1213 This work was sponsored by Logica.
1216 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1217 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1218 attribute creation routines such as certifcate requests and PKCS#12
1222 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1224 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1225 handshake which could lead to a cilent crash as found using the
1226 Codenomicon TLS test suite (CVE-2008-1672)
1227 [Steve Henson, Mark Cox]
1229 *) Fix double free in TLS server name extensions which could lead to
1230 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1233 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1235 Clear the error queue to ensure that error entries left from
1236 older function calls do not interfere with the correct operation.
1237 [Lutz Jaenicke, Erik de Castro Lopo]
1239 *) Remove root CA certificates of commercial CAs:
1241 The OpenSSL project does not recommend any specific CA and does not
1242 have any policy with respect to including or excluding any CA.
1243 Therefore it does not make any sense to ship an arbitrary selection
1244 of root CA certificates with the OpenSSL software.
1247 *) RSA OAEP patches to fix two separate invalid memory reads.
1248 The first one involves inputs when 'lzero' is greater than
1249 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1250 before the beginning of from). The second one involves inputs where
1251 the 'db' section contains nothing but zeroes (there is a one-byte
1252 invalid read after the end of 'db').
1253 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1255 *) Partial backport from 0.9.9-dev:
1257 Introduce bn_mul_mont (dedicated Montgomery multiplication
1258 procedure) as a candidate for BIGNUM assembler implementation.
1259 While 0.9.9-dev uses assembler for various architectures, only
1260 x86_64 is available by default here in the 0.9.8 branch, and
1261 32-bit x86 is available through a compile-time setting.
1263 To try the 32-bit x86 assembler implementation, use Configure
1264 option "enable-montasm" (which exists only for this backport).
1266 As "enable-montasm" for 32-bit x86 disclaims code stability
1267 anyway, in this constellation we activate additional code
1268 backported from 0.9.9-dev for further performance improvements,
1269 namely BN_from_montgomery_word. (To enable this otherwise,
1270 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1272 [Andy Polyakov (backport partially by Bodo Moeller)]
1274 *) Add TLS session ticket callback. This allows an application to set
1275 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1276 values. This is useful for key rollover for example where several key
1277 sets may exist with different names.
1280 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1281 This was broken until now in 0.9.8 releases, such that the only way
1282 a registered ENGINE could be used (assuming it initialises
1283 successfully on the host) was to explicitly set it as the default
1284 for the relevant algorithms. This is in contradiction with 0.9.7
1285 behaviour and the documentation. With this fix, when an ENGINE is
1286 registered into a given algorithm's table of implementations, the
1287 'uptodate' flag is reset so that auto-discovery will be used next
1288 time a new context for that algorithm attempts to select an
1290 [Ian Lister (tweaked by Geoff Thorpe)]
1292 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1293 implemention in the following ways:
1295 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1298 Lack of BER streaming support means one pass streaming processing is
1299 only supported if data is detached: setting the streaming flag is
1300 ignored for embedded content.
1302 CMS support is disabled by default and must be explicitly enabled
1303 with the enable-cms configuration option.
1306 *) Update the GMP engine glue to do direct copies between BIGNUM and
1307 mpz_t when openssl and GMP use the same limb size. Otherwise the
1308 existing "conversion via a text string export" trick is still used.
1309 [Paul Sheer <paulsheer@gmail.com>]
1311 *) Zlib compression BIO. This is a filter BIO which compressed and
1312 uncompresses any data passed through it.
1315 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1316 RFC3394 compatible AES key wrapping.
1319 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1320 sets string data without copying. X509_ALGOR_set0() and
1321 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1322 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1323 from an X509_ATTRIBUTE structure optionally checking it occurs only
1324 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1328 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1329 to get the expected BN_FLG_CONSTTIME behavior.
1330 [Bodo Moeller (Google)]
1334 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1335 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1336 - added some more tests to do_tests.pl
1337 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1338 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1339 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1340 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1341 - various changes to netware.pl to enable gcc-cross builds on Win32
1343 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1344 - various changes to fix missing prototype warnings
1345 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1346 - added AES, WHIRLPOOL and CPUID assembler code to build files
1347 - added missing AES assembler make rules to mk1mf.pl
1348 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1349 [Guenter Knauf <eflash@gmx.net>]
1351 *) Implement certificate status request TLS extension defined in RFC3546.
1352 A client can set the appropriate parameters and receive the encoded
1353 OCSP response via a callback. A server can query the supplied parameters
1354 and set the encoded OCSP response in the callback. Add simplified examples
1355 to s_client and s_server.
1358 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1360 *) Fix various bugs:
1361 + Binary incompatibility of ssl_ctx_st structure
1362 + DTLS interoperation with non-compliant servers
1363 + Don't call get_session_cb() without proposed session
1364 + Fix ia64 assembler code
1365 [Andy Polyakov, Steve Henson]
1367 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1369 *) DTLS Handshake overhaul. There were longstanding issues with
1370 OpenSSL DTLS implementation, which were making it impossible for
1371 RFC 4347 compliant client to communicate with OpenSSL server.
1372 Unfortunately just fixing these incompatibilities would "cut off"
1373 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1374 server keeps tolerating non RFC compliant syntax. The opposite is
1375 not true, 0.9.8f client can not communicate with earlier server.
1376 This update even addresses CVE-2007-4995.
1379 *) Changes to avoid need for function casts in OpenSSL: some compilers
1380 (gcc 4.2 and later) reject their use.
1381 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1384 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1385 RFC4507bis. The encrypted ticket format is an encrypted encoded
1386 SSL_SESSION structure, that way new session features are automatically
1389 If a client application caches session in an SSL_SESSION structure
1390 support is transparent because tickets are now stored in the encoded
1393 The SSL_CTX structure automatically generates keys for ticket
1394 protection in servers so again support should be possible
1395 with no application modification.
1397 If a client or server wishes to disable RFC4507 support then the option
1398 SSL_OP_NO_TICKET can be set.
1400 Add a TLS extension debugging callback to allow the contents of any client
1401 or server extensions to be examined.
1403 This work was sponsored by Google.
1406 *) Add initial support for TLS extensions, specifically for the server_name
1407 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1408 have new members for a host name. The SSL data structure has an
1409 additional member SSL_CTX *initial_ctx so that new sessions can be
1410 stored in that context to allow for session resumption, even after the
1411 SSL has been switched to a new SSL_CTX in reaction to a client's
1412 server_name extension.
1414 New functions (subject to change):
1416 SSL_get_servername()
1417 SSL_get_servername_type()
1420 New CTRL codes and macros (subject to change):
1422 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1423 - SSL_CTX_set_tlsext_servername_callback()
1424 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1425 - SSL_CTX_set_tlsext_servername_arg()
1426 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1428 openssl s_client has a new '-servername ...' option.
1430 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1431 '-key2 ...', '-servername_fatal' (subject to change). This allows
1432 testing the HostName extension for a specific single host name ('-cert'
1433 and '-key' remain fallbacks for handshakes without HostName
1434 negotiation). If the unrecogninzed_name alert has to be sent, this by
1435 default is a warning; it becomes fatal with the '-servername_fatal'
1438 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1440 *) Add AES and SSE2 assembly language support to VC++ build.
1443 *) Mitigate attack on final subtraction in Montgomery reduction.
1446 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1447 (which previously caused an internal error).
1450 *) Squeeze another 10% out of IGE mode when in != out.
1453 *) AES IGE mode speedup.
1454 [Dean Gaudet (Google)]
1456 *) Add the Korean symmetric 128-bit cipher SEED (see
1457 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1458 add SEED ciphersuites from RFC 4162:
1460 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1461 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1462 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1463 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1465 To minimize changes between patchlevels in the OpenSSL 0.9.8
1466 series, SEED remains excluded from compilation unless OpenSSL
1467 is configured with 'enable-seed'.
1468 [KISA, Bodo Moeller]
1470 *) Mitigate branch prediction attacks, which can be practical if a
1471 single processor is shared, allowing a spy process to extract
1472 information. For detailed background information, see
1473 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1474 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1475 and Necessary Software Countermeasures"). The core of the change
1476 are new versions BN_div_no_branch() and
1477 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1478 respectively, which are slower, but avoid the security-relevant
1479 conditional branches. These are automatically called by BN_div()
1480 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1481 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1482 remove a conditional branch.
1484 BN_FLG_CONSTTIME is the new name for the previous
1485 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1486 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1487 in the exponent causes BN_mod_exp_mont() to use the alternative
1488 implementation in BN_mod_exp_mont_consttime().) The old name
1489 remains as a deprecated alias.
1491 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1492 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1493 constant-time implementations for more than just exponentiation.
1494 Here too the old name is kept as a deprecated alias.
1496 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1497 the BN_BLINDING structure gets an independent copy of the
1498 modulus. This means that the previous "BIGNUM *m" argument to
1499 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1500 essentially becomes "const BIGNUM *m", although we can't actually
1501 change this in the header file before 0.9.9. It allows
1502 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1503 enable BN_FLG_CONSTTIME.
1505 [Matthew D Wood (Intel Corp)]
1507 *) In the SSL/TLS server implementation, be strict about session ID
1508 context matching (which matters if an application uses a single
1509 external cache for different purposes). Previously,
1510 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1511 set. This did ensure strict client verification, but meant that,
1512 with applications using a single external cache for quite
1513 different requirements, clients could circumvent ciphersuite
1514 restrictions for a given session ID context by starting a session
1515 in a different context.
1518 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1519 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1520 authentication-only ciphersuites.
1523 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1524 not complete and could lead to a possible single byte overflow
1525 (CVE-2007-5135) [Ben Laurie]
1527 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1529 *) Since AES128 and AES256 (and similarly Camellia128 and
1530 Camellia256) share a single mask bit in the logic of
1531 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1532 kludge to work properly if AES128 is available and AES256 isn't
1533 (or if Camellia128 is available and Camellia256 isn't).
1536 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1537 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1538 When a point or a seed is encoded in a BIT STRING, we need to
1539 prevent the removal of trailing zero bits to get the proper DER
1540 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1541 of a NamedBitList, for which trailing 0 bits need to be removed.)
1544 *) Have SSL/TLS server implementation tolerate "mismatched" record
1545 protocol version while receiving ClientHello even if the
1546 ClientHello is fragmented. (The server can't insist on the
1547 particular protocol version it has chosen before the ServerHello
1548 message has informed the client about his choice.)
1551 *) Add RFC 3779 support.
1552 [Rob Austein for ARIN, Ben Laurie]
1554 *) Load error codes if they are not already present instead of using a
1555 static variable. This allows them to be cleanly unloaded and reloaded.
1556 Improve header file function name parsing.
1559 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1560 or CAPABILITY handshake as required by RFCs.
1563 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1565 *) Introduce limits to prevent malicious keys being able to
1566 cause a denial of service. (CVE-2006-2940)
1567 [Steve Henson, Bodo Moeller]
1569 *) Fix ASN.1 parsing of certain invalid structures that can result
1570 in a denial of service. (CVE-2006-2937) [Steve Henson]
1572 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1573 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1575 *) Fix SSL client code which could crash if connecting to a
1576 malicious SSLv2 server. (CVE-2006-4343)
1577 [Tavis Ormandy and Will Drewry, Google Security Team]
1579 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1580 match only those. Before that, "AES256-SHA" would be interpreted
1581 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1582 the same strength classification in 0.9.7h) as we currently only
1583 have a single AES bit in the ciphersuite description bitmap.
1584 That change, however, also applied to ciphersuite strings such as
1585 "RC4-MD5" that intentionally matched multiple ciphersuites --
1586 namely, SSL 2.0 ciphersuites in addition to the more common ones
1587 from SSL 3.0/TLS 1.0.
1589 So we change the selection algorithm again: Naming an explicit
1590 ciphersuite selects this one ciphersuite, and any other similar
1591 ciphersuite (same bitmap) from *other* protocol versions.
1592 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1593 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1595 Since SSL 2.0 does not have any ciphersuites for which the
1596 128/256 bit distinction would be relevant, this works for now.
1597 The proper fix will be to use different bits for AES128 and
1598 AES256, which would have avoided the problems from the beginning;
1599 however, bits are scarce, so we can only do this in a new release
1600 (not just a patchlevel) when we can change the SSL_CIPHER
1601 definition to split the single 'unsigned long mask' bitmap into
1602 multiple values to extend the available space.
1606 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1608 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1609 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1611 *) Add AES IGE and biIGE modes.
1614 *) Change the Unix randomness entropy gathering to use poll() when
1615 possible instead of select(), since the latter has some
1616 undesirable limitations.
1617 [Darryl Miles via Richard Levitte and Bodo Moeller]
1619 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1620 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1621 cannot be implicitly activated as part of, e.g., the "AES" alias.
1622 However, please upgrade to OpenSSL 0.9.9[-dev] for
1623 non-experimental use of the ECC ciphersuites to get TLS extension
1624 support, which is required for curve and point format negotiation
1625 to avoid potential handshake problems.
1628 *) Disable rogue ciphersuites:
1630 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1631 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1632 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1634 The latter two were purportedly from
1635 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1638 Also deactivate the remaining ciphersuites from
1639 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1640 unofficial, and the ID has long expired.
1643 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1644 dual-core machines) and other potential thread-safety issues.
1647 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1648 versions), which is now available for royalty-free use
1649 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1650 Also, add Camellia TLS ciphersuites from RFC 4132.
1652 To minimize changes between patchlevels in the OpenSSL 0.9.8
1653 series, Camellia remains excluded from compilation unless OpenSSL
1654 is configured with 'enable-camellia'.
1657 *) Disable the padding bug check when compression is in use. The padding
1658 bug check assumes the first packet is of even length, this is not
1659 necessarily true if compresssion is enabled and can result in false
1660 positives causing handshake failure. The actual bug test is ancient
1661 code so it is hoped that implementations will either have fixed it by
1662 now or any which still have the bug do not support compression.
1665 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1667 *) When applying a cipher rule check to see if string match is an explicit
1668 cipher suite and only match that one cipher suite if it is.
1671 *) Link in manifests for VC++ if needed.
1672 [Austin Ziegler <halostatue@gmail.com>]
1674 *) Update support for ECC-based TLS ciphersuites according to
1675 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1676 TLS extensions, which are supported starting with the 0.9.9
1677 branch, not in the OpenSSL 0.9.8 branch).
1680 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1681 opaque EVP_CIPHER_CTX handling.
1684 *) Fixes and enhancements to zlib compression code. We now only use
1685 "zlib1.dll" and use the default __cdecl calling convention on Win32
1686 to conform with the standards mentioned here:
1687 http://www.zlib.net/DLL_FAQ.txt
1688 Static zlib linking now works on Windows and the new --with-zlib-include
1689 --with-zlib-lib options to Configure can be used to supply the location
1690 of the headers and library. Gracefully handle case where zlib library
1694 *) Several fixes and enhancements to the OID generation code. The old code
1695 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1696 handle numbers larger than ULONG_MAX, truncated printing and had a
1697 non standard OBJ_obj2txt() behaviour.
1700 *) Add support for building of engines under engine/ as shared libraries
1701 under VC++ build system.
1704 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1705 Hopefully, we will not see any false combination of paths any more.
1708 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1710 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1711 (part of SSL_OP_ALL). This option used to disable the
1712 countermeasure against man-in-the-middle protocol-version
1713 rollback in the SSL 2.0 server implementation, which is a bad
1714 idea. (CVE-2005-2969)
1716 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1717 for Information Security, National Institute of Advanced Industrial
1718 Science and Technology [AIST], Japan)]
1720 *) Add two function to clear and return the verify parameter flags.
1723 *) Keep cipherlists sorted in the source instead of sorting them at
1724 runtime, thus removing the need for a lock.
1727 *) Avoid some small subgroup attacks in Diffie-Hellman.
1728 [Nick Mathewson and Ben Laurie]
1730 *) Add functions for well-known primes.
1733 *) Extended Windows CE support.
1734 [Satoshi Nakamura and Andy Polyakov]
1736 *) Initialize SSL_METHOD structures at compile time instead of during
1737 runtime, thus removing the need for a lock.
1740 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1741 attempting to decrypt each encrypted key in turn. Add support to
1745 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1747 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1750 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1753 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1754 key into the same file any more.
1757 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1760 *) Add -utf8 command line and config file option to 'ca'.
1761 [Stefan <stf@udoma.org]
1763 *) Removed the macro des_crypt(), as it seems to conflict with some
1764 libraries. Use DES_crypt().
1767 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1768 involves renaming the source and generated shared-libs for
1769 both. The engines will accept the corrected or legacy ids
1770 ('ncipher' and '4758_cca' respectively) when binding. NB,
1771 this only applies when building 'shared'.
1772 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1774 *) Add attribute functions to EVP_PKEY structure. Modify
1775 PKCS12_create() to recognize a CSP name attribute and
1776 use it. Make -CSP option work again in pkcs12 utility.
1779 *) Add new functionality to the bn blinding code:
1780 - automatic re-creation of the BN_BLINDING parameters after
1781 a fixed number of uses (currently 32)
1782 - add new function for parameter creation
1783 - introduce flags to control the update behaviour of the
1784 BN_BLINDING parameters
1785 - hide BN_BLINDING structure
1786 Add a second BN_BLINDING slot to the RSA structure to improve
1787 performance when a single RSA object is shared among several
1791 *) Add support for DTLS.
1792 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1794 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1795 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1798 *) Remove buggy and incompletet DH cert support from
1799 ssl/ssl_rsa.c and ssl/s3_both.c
1802 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1803 the apps/openssl applications.
1806 *) Compile clean with "-Wall -Wmissing-prototypes
1807 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1808 DEBUG_SAFESTACK must also be set.
1811 *) Change ./Configure so that certain algorithms can be disabled by default.
1812 The new counterpiece to "no-xxx" is "enable-xxx".
1814 The patented RC5 and MDC2 algorithms will now be disabled unless
1815 "enable-rc5" and "enable-mdc2", respectively, are specified.
1817 (IDEA remains enabled despite being patented. This is because IDEA
1818 is frequently required for interoperability, and there is no license
1819 fee for non-commercial use. As before, "no-idea" can be used to
1820 avoid this algorithm.)
1824 *) Add processing of proxy certificates (see RFC 3820). This work was
1825 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1826 EGEE (Enabling Grids for E-science in Europe).
1829 *) RC4 performance overhaul on modern architectures/implementations, such
1830 as Intel P4, IA-64 and AMD64.
1833 *) New utility extract-section.pl. This can be used specify an alternative
1834 section number in a pod file instead of having to treat each file as
1835 a separate case in Makefile. This can be done by adding two lines to the
1838 =for comment openssl_section:XXX
1840 The blank line is mandatory.
1844 *) New arguments -certform, -keyform and -pass for s_client and s_server
1845 to allow alternative format key and certificate files and passphrase
1849 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1850 update associated structures and add various utility functions.
1852 Add new policy related verify parameters, include policy checking in
1853 standard verify code. Enhance 'smime' application with extra parameters
1854 to support policy checking and print out.
1857 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1858 Nehemiah processors. These extensions support AES encryption in hardware
1859 as well as RNG (though RNG support is currently disabled).
1860 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1862 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1865 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1866 [Andy Polyakov and a number of other people]
1868 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1869 implementation contributed by IBM.
1870 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1872 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1873 exponent rather than 'unsigned long'. There is a corresponding change to
1874 the new 'rsa_keygen' element of the RSA_METHOD structure.
1875 [Jelte Jansen, Geoff Thorpe]
1877 *) Functionality for creating the initial serial number file is now
1878 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1880 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1881 number file to 1, which is bound to cause problems. To avoid
1882 the problems while respecting compatibility between different 0.9.7
1883 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1884 CA.pl for serial number initialization. With the new release 0.9.8,
1885 we can fix the problem directly in the 'ca' utility.)
1888 *) Reduced header interdepencies by declaring more opaque objects in
1889 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1890 give fewer recursive includes, which could break lazy source code - so
1891 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1892 developers should define this symbol when building and using openssl to
1893 ensure they track the recommended behaviour, interfaces, [etc], but
1894 backwards-compatible behaviour prevails when this isn't defined.
1897 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1900 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1901 This will generate a random key of the appropriate length based on the
1902 cipher context. The EVP_CIPHER can provide its own random key generation
1903 routine to support keys of a specific form. This is used in the des and
1904 3des routines to generate a key of the correct parity. Update S/MIME
1905 code to use new functions and hence generate correct parity DES keys.
1906 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1907 valid (weak or incorrect parity).
1910 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1911 as looking them up. This is useful when the verified structure may contain
1912 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1913 present unless the new PKCS7_NO_CRL flag is asserted.
1916 *) Extend ASN1 oid configuration module. It now additionally accepts the
1919 shortName = some long name, 1.2.3.4
1922 *) Reimplemented the BN_CTX implementation. There is now no more static
1923 limitation on the number of variables it can handle nor the depth of the
1924 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1925 information can now expand as required, and rather than having a single
1926 static array of bignums, BN_CTX now uses a linked-list of such arrays
1927 allowing it to expand on demand whilst maintaining the usefulness of
1928 BN_CTX's "bundling".
1931 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1932 to allow all RSA operations to function using a single BN_CTX.
1935 *) Preliminary support for certificate policy evaluation and checking. This
1936 is initially intended to pass the tests outlined in "Conformance Testing
1937 of Relying Party Client Certificate Path Processing Logic" v1.07.
1940 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1941 remained unused and not that useful. A variety of other little bignum
1942 tweaks and fixes have also been made continuing on from the audit (see
1946 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1947 associated ASN1, EVP and SSL functions and old ASN1 macros.
1950 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1951 and this should never fail. So the return value from the use of
1952 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1953 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1956 *) BN_CTX_get() should return zero-valued bignums, providing the same
1957 initialised value as BN_new().
1958 [Geoff Thorpe, suggested by Ulf Möller]
1960 *) Support for inhibitAnyPolicy certificate extension.
1963 *) An audit of the BIGNUM code is underway, for which debugging code is
1964 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1965 is considered valid when processing BIGNUMs, and causes execution to
1966 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1967 further steps are taken to deliberately pollute unused data in BIGNUM
1968 structures to try and expose faulty code further on. For now, openssl will
1969 (in its default mode of operation) continue to tolerate the inconsistent
1970 forms that it has tolerated in the past, but authors and packagers should
1971 consider trying openssl and their own applications when compiled with
1972 these debugging symbols defined. It will help highlight potential bugs in
1973 their own code, and will improve the test coverage for OpenSSL itself. At
1974 some point, these tighter rules will become openssl's default to improve
1975 maintainability, though the assert()s and other overheads will remain only
1976 in debugging configurations. See bn.h for more details.
1977 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1979 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1980 that can only be obtained through BN_CTX_new() (which implicitly
1981 initialises it). The presence of this function only made it possible
1982 to overwrite an existing structure (and cause memory leaks).
1985 *) Because of the callback-based approach for implementing LHASH as a
1986 template type, lh_insert() adds opaque objects to hash-tables and
1987 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1988 to clean up those corresponding objects before destroying the hash table
1989 (and losing the object pointers). So some over-zealous constifications in
1990 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1991 objects as "const" and the lh_doall[_arg] callback wrappers are not
1992 prototyped to have "const" restrictions on the object pointers they are
1993 given (and so aren't required to cast them away any more).
1996 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1997 (speed) prefers to use its own implementation. The two implementations
1998 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1999 its object type properly exposed (MS_TM) instead of casting to/from "char
2000 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2001 aren't necessarily the greatest nomenclatures - but this is what was used
2002 internally to the implementation so I've used that for now.
2005 *) Ensure that deprecated functions do not get compiled when
2006 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2007 the self-tests were still using deprecated key-generation functions so
2008 these have been updated also.
2011 *) Reorganise PKCS#7 code to separate the digest location functionality
2012 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2013 New function PKCS7_set_digest() to set the digest type for PKCS#7
2014 digestedData type. Add additional code to correctly generate the
2015 digestedData type and add support for this type in PKCS7 initialization
2019 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2020 structure of type "other".
2023 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2024 sure the loop does correctly stop and breaking ("division by zero")
2025 modulus operations are not performed. The (pre-generated) prime
2026 table crypto/bn/bn_prime.h was already correct, but it could not be
2027 re-generated on some platforms because of the "division by zero"
2028 situation in the script.
2029 [Ralf S. Engelschall]
2031 *) Update support for ECC-based TLS ciphersuites according to
2032 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2033 SHA-1 now is only used for "small" curves (where the
2034 representation of a field element takes up to 24 bytes); for
2035 larger curves, the field element resulting from ECDH is directly
2036 used as premaster secret.
2037 [Douglas Stebila (Sun Microsystems Laboratories)]
2039 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2040 curve secp160r1 to the tests.
2041 [Douglas Stebila (Sun Microsystems Laboratories)]
2043 *) Add the possibility to load symbols globally with DSO.
2044 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2046 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2047 control of the error stack.
2050 *) Add support for STORE in ENGINE.
2053 *) Add the STORE type. The intention is to provide a common interface
2054 to certificate and key stores, be they simple file-based stores, or
2055 HSM-type store, or LDAP stores, or...
2056 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2059 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2060 pass a list of arguments to any function as well as provide a way
2061 for a function to pass data back to the caller.
2064 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2065 works like BUF_strdup() but can be used to duplicate a portion of
2066 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2070 *) Add the function sk_find_ex() which works like sk_find(), but will
2071 return an index to an element even if an exact match couldn't be
2072 found. The index is guaranteed to point at the element where the
2073 searched-for key would be inserted to preserve sorting order.
2076 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2077 takes an extra flags argument for optional functionality. Currently,
2078 the following flags are defined:
2080 OBJ_BSEARCH_VALUE_ON_NOMATCH
2081 This one gets OBJ_bsearch_ex() to return a pointer to the first
2082 element where the comparing function returns a negative or zero
2085 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2086 This one gets OBJ_bsearch_ex() to return a pointer to the first
2087 element where the comparing function returns zero. This is useful
2088 if there are more than one element where the comparing function
2092 *) Make it possible to create self-signed certificates with 'openssl ca'
2093 in such a way that the self-signed certificate becomes part of the
2094 CA database and uses the same mechanisms for serial number generation
2095 as all other certificate signing. The new flag '-selfsign' enables
2096 this functionality. Adapt CA.sh and CA.pl.in.
2099 *) Add functionality to check the public key of a certificate request
2100 against a given private. This is useful to check that a certificate
2101 request can be signed by that key (self-signing).
2104 *) Make it possible to have multiple active certificates with the same
2105 subject in the CA index file. This is done only if the keyword
2106 'unique_subject' is set to 'no' in the main CA section (default
2107 if 'CA_default') of the configuration file. The value is saved
2108 with the database itself in a separate index attribute file,
2109 named like the index file with '.attr' appended to the name.
2112 *) Generate muti valued AVAs using '+' notation in config files for
2116 *) Support for nameConstraints certificate extension.
2119 *) Support for policyConstraints certificate extension.
2122 *) Support for policyMappings certificate extension.
2125 *) Make sure the default DSA_METHOD implementation only uses its
2126 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2127 and change its own handlers to be NULL so as to remove unnecessary
2128 indirection. This lets alternative implementations fallback to the
2129 default implementation more easily.
2132 *) Support for directoryName in GeneralName related extensions
2136 *) Make it possible to link applications using Makefile.shared.
2137 Make that possible even when linking against static libraries!
2140 *) Support for single pass processing for S/MIME signing. This now
2141 means that S/MIME signing can be done from a pipe, in addition
2142 cleartext signing (multipart/signed type) is effectively streaming
2143 and the signed data does not need to be all held in memory.
2145 This is done with a new flag PKCS7_STREAM. When this flag is set
2146 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2147 is done after the data is output (and digests calculated) in
2148 SMIME_write_PKCS7().
2151 *) Add full support for -rpath/-R, both in shared libraries and
2152 applications, at least on the platforms where it's known how
2156 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2157 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2158 will now compute a table of multiples of the generator that
2159 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2160 faster (notably in the case of a single point multiplication,
2161 scalar * generator).
2162 [Nils Larsch, Bodo Moeller]
2164 *) IPv6 support for certificate extensions. The various extensions
2165 which use the IP:a.b.c.d can now take IPv6 addresses using the
2166 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2170 *) Added an ENGINE that implements RSA by performing private key
2171 exponentiations with the GMP library. The conversions to and from
2172 GMP's mpz_t format aren't optimised nor are any montgomery forms
2173 cached, and on x86 it appears OpenSSL's own performance has caught up.
2174 However there are likely to be other architectures where GMP could
2175 provide a boost. This ENGINE is not built in by default, but it can be
2176 specified at Configure time and should be accompanied by the necessary
2177 linker additions, eg;
2178 ./config -DOPENSSL_USE_GMP -lgmp
2181 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2182 testing availability of engines with "-t" - the old behaviour is
2183 produced by increasing the feature's verbosity with "-tt".
2186 *) ECDSA routines: under certain error conditions uninitialized BN objects
2187 could be freed. Solution: make sure initialization is performed early
2188 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2192 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2193 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2194 software implementations. For DSA and DH, parameter generation can
2195 also be overriden by providing the appropriate method callbacks.
2198 *) Change the "progress" mechanism used in key-generation and
2199 primality testing to functions that take a new BN_GENCB pointer in
2200 place of callback/argument pairs. The new API functions have "_ex"
2201 postfixes and the older functions are reimplemented as wrappers for
2202 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2203 declarations of the old functions to help (graceful) attempts to
2204 migrate to the new functions. Also, the new key-generation API
2205 functions operate on a caller-supplied key-structure and return
2206 success/failure rather than returning a key or NULL - this is to
2207 help make "keygen" another member function of RSA_METHOD etc.
2209 Example for using the new callback interface:
2211 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2215 BN_GENCB_set(&my_cb, my_callback, my_arg);
2217 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2218 /* For the meaning of a, b in calls to my_callback(), see the
2219 * documentation of the function that calls the callback.
2220 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2221 * my_callback should return 1 if it wants BN_is_prime_ex()
2222 * to continue, or 0 to stop.
2227 *) Change the ZLIB compression method to be stateful, and make it
2228 available to TLS with the number defined in
2229 draft-ietf-tls-compression-04.txt.
2232 *) Add the ASN.1 structures and functions for CertificatePair, which
2233 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2235 CertificatePair ::= SEQUENCE {
2236 forward [0] Certificate OPTIONAL,
2237 reverse [1] Certificate OPTIONAL,
2238 -- at least one of the pair shall be present -- }
2240 Also implement the PEM functions to read and write certificate
2241 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2243 This needed to be defined, mostly for the sake of the LDAP
2244 attribute crossCertificatePair, but may prove useful elsewhere as
2248 *) Make it possible to inhibit symlinking of shared libraries in
2249 Makefile.shared, for Cygwin's sake.
2252 *) Extend the BIGNUM API by creating a function
2253 void BN_set_negative(BIGNUM *a, int neg);
2254 and a macro that behave like
2255 int BN_is_negative(const BIGNUM *a);
2257 to avoid the need to access 'a->neg' directly in applications.
2260 *) Implement fast modular reduction for pseudo-Mersenne primes
2261 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2262 EC_GROUP_new_curve_GFp() will now automatically use this
2264 [Nils Larsch <nla@trustcenter.de>]
2266 *) Add new lock type (CRYPTO_LOCK_BN).
2269 *) Change the ENGINE framework to automatically load engines
2270 dynamically from specific directories unless they could be
2271 found to already be built in or loaded. Move all the
2272 current engines except for the cryptodev one to a new
2274 The engines in engines/ are built as shared libraries if
2275 the "shared" options was given to ./Configure or ./config.
2276 Otherwise, they are inserted in libcrypto.a.
2277 /usr/local/ssl/engines is the default directory for dynamic
2278 engines, but that can be overriden at configure time through
2279 the usual use of --prefix and/or --openssldir, and at run
2280 time with the environment variable OPENSSL_ENGINES.
2281 [Geoff Thorpe and Richard Levitte]
2283 *) Add Makefile.shared, a helper makefile to build shared
2284 libraries. Addapt Makefile.org.
2287 *) Add version info to Win32 DLLs.
2288 [Peter 'Luna' Runestig" <peter@runestig.com>]
2290 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2291 can be added using this API to created arbitrary PKCS#12
2292 files while avoiding the low level API.
2294 New options to PKCS12_create(), key or cert can be NULL and
2295 will then be omitted from the output file. The encryption
2296 algorithm NIDs can be set to -1 for no encryption, the mac
2297 iteration count can be set to 0 to omit the mac.
2299 Enhance pkcs12 utility by making the -nokeys and -nocerts
2300 options work when creating a PKCS#12 file. New option -nomac
2301 to omit the mac, NONE can be set for an encryption algorithm.
2302 New code is modified to use the enhanced PKCS12_create()
2303 instead of the low level API.
2306 *) Extend ASN1 encoder to support indefinite length constructed
2307 encoding. This can output sequences tags and octet strings in
2308 this form. Modify pk7_asn1.c to support indefinite length
2309 encoding. This is experimental and needs additional code to
2310 be useful, such as an ASN1 bio and some enhanced streaming
2313 Extend template encode functionality so that tagging is passed
2314 down to the template encoder.
2317 *) Let 'openssl req' fail if an argument to '-newkey' is not
2318 recognized instead of using RSA as a default.
2321 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2322 As these are not official, they are not included in "ALL";
2323 the "ECCdraft" ciphersuite group alias can be used to select them.
2324 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2326 *) Add ECDH engine support.
2327 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2329 *) Add ECDH in new directory crypto/ecdh/.
2330 [Douglas Stebila (Sun Microsystems Laboratories)]
2332 *) Let BN_rand_range() abort with an error after 100 iterations
2333 without success (which indicates a broken PRNG).
2336 *) Change BN_mod_sqrt() so that it verifies that the input value
2337 is really the square of the return value. (Previously,
2338 BN_mod_sqrt would show GIGO behaviour.)
2341 *) Add named elliptic curves over binary fields from X9.62, SECG,
2342 and WAP/WTLS; add OIDs that were still missing.
2344 [Sheueling Chang Shantz and Douglas Stebila
2345 (Sun Microsystems Laboratories)]
2347 *) Extend the EC library for elliptic curves over binary fields
2348 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2351 EC_GF2m_simple_method
2355 EC_GROUP_new_curve_GF2m
2356 EC_GROUP_set_curve_GF2m
2357 EC_GROUP_get_curve_GF2m
2358 EC_POINT_set_affine_coordinates_GF2m
2359 EC_POINT_get_affine_coordinates_GF2m
2360 EC_POINT_set_compressed_coordinates_GF2m
2362 Point compression for binary fields is disabled by default for
2363 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2366 As binary polynomials are represented as BIGNUMs, various members
2367 of the EC_GROUP and EC_POINT data structures can be shared
2368 between the implementations for prime fields and binary fields;
2369 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2370 are essentially identical to their ..._GFp counterparts.
2371 (For simplicity, the '..._GFp' prefix has been dropped from
2372 various internal method names.)
2374 An internal 'field_div' method (similar to 'field_mul' and
2375 'field_sqr') has been added; this is used only for binary fields.
2377 [Sheueling Chang Shantz and Douglas Stebila
2378 (Sun Microsystems Laboratories)]
2380 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2381 through methods ('mul', 'precompute_mult').
2383 The generic implementations (now internally called 'ec_wNAF_mul'
2384 and 'ec_wNAF_precomputed_mult') remain the default if these
2385 methods are undefined.
2387 [Sheueling Chang Shantz and Douglas Stebila
2388 (Sun Microsystems Laboratories)]
2390 *) New function EC_GROUP_get_degree, which is defined through
2391 EC_METHOD. For curves over prime fields, this returns the bit
2392 length of the modulus.
2394 [Sheueling Chang Shantz and Douglas Stebila
2395 (Sun Microsystems Laboratories)]
2397 *) New functions EC_GROUP_dup, EC_POINT_dup.
2398 (These simply call ..._new and ..._copy).
2400 [Sheueling Chang Shantz and Douglas Stebila
2401 (Sun Microsystems Laboratories)]
2403 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2404 Polynomials are represented as BIGNUMs (where the sign bit is not
2405 used) in the following functions [macros]:
2408 BN_GF2m_sub [= BN_GF2m_add]
2409 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2410 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2411 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2413 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2414 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2415 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2416 BN_GF2m_cmp [= BN_ucmp]
2418 (Note that only the 'mod' functions are actually for fields GF(2^m).
2419 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2421 For some functions, an the irreducible polynomial defining a
2422 field can be given as an 'unsigned int[]' with strictly
2423 decreasing elements giving the indices of those bits that are set;
2424 i.e., p[] represents the polynomial
2425 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2427 p[0] > p[1] > ... > p[k] = 0.
2428 This applies to the following functions:
2433 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2434 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2436 BN_GF2m_mod_sqrt_arr
2437 BN_GF2m_mod_solve_quad_arr
2441 Conversion can be performed by the following functions:
2446 bntest.c has additional tests for binary polynomial arithmetic.
2448 Two implementations for BN_GF2m_mod_div() are available.
2449 The default algorithm simply uses BN_GF2m_mod_inv() and
2450 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2451 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2452 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2454 [Sheueling Chang Shantz and Douglas Stebila
2455 (Sun Microsystems Laboratories)]
2457 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2458 functionality is disabled at compile-time.
2459 [Douglas Stebila <douglas.stebila@sun.com>]
2461 *) Change default behaviour of 'openssl asn1parse' so that more
2462 information is visible when viewing, e.g., a certificate:
2464 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2465 mode the content of non-printable OCTET STRINGs is output in a
2466 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2467 avoid the appearance of a printable string.
2468 [Nils Larsch <nla@trustcenter.de>]
2470 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2472 EC_GROUP_set_asn1_flag()
2473 EC_GROUP_get_asn1_flag()
2474 EC_GROUP_set_point_conversion_form()
2475 EC_GROUP_get_point_conversion_form()
2476 These control ASN1 encoding details:
2477 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2478 has been set to OPENSSL_EC_NAMED_CURVE.
2479 - Points are encoded in uncompressed form by default; options for
2480 asn1_for are as for point2oct, namely
2481 POINT_CONVERSION_COMPRESSED
2482 POINT_CONVERSION_UNCOMPRESSED
2483 POINT_CONVERSION_HYBRID
2485 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2488 EC_GROUP_get0_seed()
2489 EC_GROUP_get_seed_len()
2490 This is used only for ASN1 purposes (so far).
2491 [Nils Larsch <nla@trustcenter.de>]
2493 *) Add 'field_type' member to EC_METHOD, which holds the NID
2494 of the appropriate field type OID. The new function
2495 EC_METHOD_get_field_type() returns this value.
2496 [Nils Larsch <nla@trustcenter.de>]
2501 EC_POINT_point2hex()
2502 EC_POINT_hex2point()
2503 providing useful interfaces to EC_POINT_point2oct() and
2504 EC_POINT_oct2point().
2505 [Nils Larsch <nla@trustcenter.de>]
2507 *) Change internals of the EC library so that the functions
2508 EC_GROUP_set_generator()
2509 EC_GROUP_get_generator()
2510 EC_GROUP_get_order()
2511 EC_GROUP_get_cofactor()
2512 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2513 to methods, which would lead to unnecessary code duplication when
2514 adding different types of curves.
2515 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2517 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2518 arithmetic, and such that modified wNAFs are generated
2519 (which avoid length expansion in many cases).
2522 *) Add a function EC_GROUP_check_discriminant() (defined via
2523 EC_METHOD) that verifies that the curve discriminant is non-zero.
2525 Add a function EC_GROUP_check() that makes some sanity tests
2526 on a EC_GROUP, its generator and order. This includes
2527 EC_GROUP_check_discriminant().
2528 [Nils Larsch <nla@trustcenter.de>]
2530 *) Add ECDSA in new directory crypto/ecdsa/.
2532 Add applications 'openssl ecparam' and 'openssl ecdsa'
2533 (these are based on 'openssl dsaparam' and 'openssl dsa').
2535 ECDSA support is also included in various other files across the
2536 library. Most notably,
2537 - 'openssl req' now has a '-newkey ecdsa:file' option;
2538 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2539 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2540 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2541 them suitable for ECDSA where domain parameters must be
2542 extracted before the specific public key;
2543 - ECDSA engine support has been added.
2544 [Nils Larsch <nla@trustcenter.de>]
2546 *) Include some named elliptic curves, and add OIDs from X9.62,
2547 SECG, and WAP/WTLS. Each curve can be obtained from the new
2549 EC_GROUP_new_by_curve_name(),
2550 and the list of available named curves can be obtained with
2551 EC_get_builtin_curves().
2552 Also add a 'curve_name' member to EC_GROUP objects, which can be
2554 EC_GROUP_set_curve_name()
2555 EC_GROUP_get_curve_name()
2556 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2558 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2559 was actually never needed) and in BN_mul(). The removal in BN_mul()
2560 required a small change in bn_mul_part_recursive() and the addition
2561 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2562 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2563 bn_sub_words() and bn_add_words() except they take arrays with
2567 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2569 *) Cleanse PEM buffers before freeing them since they may contain
2571 [Benjamin Bennett <ben@psc.edu>]
2573 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2574 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2575 authentication-only ciphersuites.
2578 *) Since AES128 and AES256 share a single mask bit in the logic of
2579 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2580 kludge to work properly if AES128 is available and AES256 isn't.
2583 *) Expand security boundary to match 1.1.1 module.
2586 *) Remove redundant features: hash file source, editing of test vectors
2587 modify fipsld to use external fips_premain.c signature.
2590 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2591 run algorithm test programs.
2594 *) Make algorithm test programs more tolerant of whitespace.
2597 *) Have SSL/TLS server implementation tolerate "mismatched" record
2598 protocol version while receiving ClientHello even if the
2599 ClientHello is fragmented. (The server can't insist on the
2600 particular protocol version it has chosen before the ServerHello
2601 message has informed the client about his choice.)
2604 *) Load error codes if they are not already present instead of using a
2605 static variable. This allows them to be cleanly unloaded and reloaded.
2608 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2610 *) Introduce limits to prevent malicious keys being able to
2611 cause a denial of service. (CVE-2006-2940)
2612 [Steve Henson, Bodo Moeller]
2614 *) Fix ASN.1 parsing of certain invalid structures that can result
2615 in a denial of service. (CVE-2006-2937) [Steve Henson]
2617 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2618 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2620 *) Fix SSL client code which could crash if connecting to a
2621 malicious SSLv2 server. (CVE-2006-4343)
2622 [Tavis Ormandy and Will Drewry, Google Security Team]
2624 *) Change ciphersuite string processing so that an explicit
2625 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2626 will no longer include "AES128-SHA"), and any other similar
2627 ciphersuite (same bitmap) from *other* protocol versions (so that
2628 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2629 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2630 changes from 0.9.8b and 0.9.8d.
2633 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2635 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2636 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2638 *) Change the Unix randomness entropy gathering to use poll() when
2639 possible instead of select(), since the latter has some
2640 undesirable limitations.
2641 [Darryl Miles via Richard Levitte and Bodo Moeller]
2643 *) Disable rogue ciphersuites:
2645 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2646 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2647 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2649 The latter two were purportedly from
2650 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2653 Also deactive the remaining ciphersuites from
2654 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2655 unofficial, and the ID has long expired.
2658 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2659 dual-core machines) and other potential thread-safety issues.
2662 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2664 *) Adapt fipsld and the build system to link against the validated FIPS
2665 module in FIPS mode.
2668 *) Fixes for VC++ 2005 build under Windows.
2671 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2672 from a Windows bash shell such as MSYS. It is autodetected from the
2673 "config" script when run from a VC++ environment. Modify standard VC++
2674 build to use fipscanister.o from the GNU make build.
2677 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2679 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2680 The value now differs depending on if you build for FIPS or not.
2681 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2682 safely run with a non-FIPSed libcrypto, as it may crash because of
2683 the difference induced by this change.
2686 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2688 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2689 (part of SSL_OP_ALL). This option used to disable the
2690 countermeasure against man-in-the-middle protocol-version
2691 rollback in the SSL 2.0 server implementation, which is a bad
2692 idea. (CVE-2005-2969)
2694 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2695 for Information Security, National Institute of Advanced Industrial
2696 Science and Technology [AIST], Japan)]
2698 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2699 mainly for FIPS compliance and not fully integrated at this stage.
2702 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2703 the exponentiation using a fixed-length exponent. (Otherwise,
2704 the information leaked through timing could expose the secret key
2705 after many signatures; cf. Bleichenbacher's attack on DSA with
2709 *) Make a new fixed-window mod_exp implementation the default for
2710 RSA, DSA, and DH private-key operations so that the sequence of
2711 squares and multiplies and the memory access pattern are
2712 independent of the particular secret key. This will mitigate
2713 cache-timing and potential related attacks.
2715 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2716 and this is automatically used by BN_mod_exp_mont() if the new flag
2717 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2718 will use this BN flag for private exponents unless the flag
2719 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2720 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2722 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2724 *) Change the client implementation for SSLv23_method() and
2725 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2726 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2727 (Previously, the SSL 2.0 backwards compatible Client Hello
2728 message format would be used even with SSL_OP_NO_SSLv2.)
2731 *) Add support for smime-type MIME parameter in S/MIME messages which some
2735 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2736 a threadsafe manner. Modify rsa code to use new function and add calls
2737 to dsa and dh code (which had race conditions before).
2740 *) Include the fixed error library code in the C error file definitions
2741 instead of fixing them up at runtime. This keeps the error code
2742 structures constant.
2745 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2747 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2750 *) Fixes for newer kerberos headers. NB: the casts are needed because
2751 the 'length' field is signed on one version and unsigned on another
2752 with no (?) obvious way to tell the difference, without these VC++
2753 complains. Also the "definition" of FAR (blank) is no longer included
2754 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2755 some needed definitions.
2758 *) Undo Cygwin change.
2761 *) Added support for proxy certificates according to RFC 3820.
2762 Because they may be a security thread to unaware applications,
2763 they must be explicitely allowed in run-time. See
2764 docs/HOWTO/proxy_certificates.txt for further information.
2767 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2769 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2770 server and client random values. Previously
2771 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2772 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2774 This change has negligible security impact because:
2776 1. Server and client random values still have 24 bytes of pseudo random
2779 2. Server and client random values are sent in the clear in the initial
2782 3. The master secret is derived using the premaster secret (48 bytes in
2783 size for static RSA ciphersuites) as well as client server and random
2786 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2789 [Stephen Henson, reported by UK NISCC]
2791 *) Use Windows randomness collection on Cygwin.
2794 *) Fix hang in EGD/PRNGD query when communication socket is closed
2795 prematurely by EGD/PRNGD.
2796 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2798 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2801 *) Back-port of selected performance improvements from development
2802 branch, as well as improved support for PowerPC platforms.
2805 *) Add lots of checks for memory allocation failure, error codes to indicate
2806 failure and freeing up memory if a failure occurs.
2807 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2809 *) Add new -passin argument to dgst.
2812 *) Perform some character comparisons of different types in X509_NAME_cmp:
2813 this is needed for some certificates that reencode DNs into UTF8Strings
2814 (in violation of RFC3280) and can't or wont issue name rollover
2818 *) Make an explicit check during certificate validation to see that
2819 the CA setting in each certificate on the chain is correct. As a
2820 side effect always do the following basic checks on extensions,
2821 not just when there's an associated purpose to the check:
2823 - if there is an unhandled critical extension (unless the user
2824 has chosen to ignore this fault)
2825 - if the path length has been exceeded (if one is set at all)
2826 - that certain extensions fit the associated purpose (if one has
2830 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2832 *) Avoid a race condition when CRLs are checked in a multi threaded
2833 environment. This would happen due to the reordering of the revoked
2834 entries during signature checking and serial number lookup. Now the
2835 encoding is cached and the serial number sort performed under a lock.
2836 Add new STACK function sk_is_sorted().
2839 *) Add Delta CRL to the extension code.
2842 *) Various fixes to s3_pkt.c so alerts are sent properly.
2843 [David Holmes <d.holmes@f5.com>]
2845 *) Reduce the chances of duplicate issuer name and serial numbers (in
2846 violation of RFC3280) using the OpenSSL certificate creation utilities.
2847 This is done by creating a random 64 bit value for the initial serial
2848 number when a serial number file is created or when a self signed
2849 certificate is created using 'openssl req -x509'. The initial serial
2850 number file is created using 'openssl x509 -next_serial' in CA.pl
2851 rather than being initialized to 1.
2854 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2856 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2857 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2858 [Joe Orton, Steve Henson]
2860 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2862 [Joe Orton, Steve Henson]
2864 *) Make it possible to have multiple active certificates with the same
2865 subject in the CA index file. This is done only if the keyword
2866 'unique_subject' is set to 'no' in the main CA section (default
2867 if 'CA_default') of the configuration file. The value is saved
2868 with the database itself in a separate index attribute file,
2869 named like the index file with '.attr' appended to the name.
2872 *) X509 verify fixes. Disable broken certificate workarounds when
2873 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2874 keyUsage extension present. Don't accept CRLs with unhandled critical
2875 extensions: since verify currently doesn't process CRL extensions this
2876 rejects a CRL with *any* critical extensions. Add new verify error codes
2880 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2881 A clarification of RFC2560 will require the use of OCTET STRINGs and
2882 some implementations cannot handle the current raw format. Since OpenSSL
2883 copies and compares OCSP nonces as opaque blobs without any attempt at
2884 parsing them this should not create any compatibility issues.
2887 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2888 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2889 this HMAC (and other) operations are several times slower than OpenSSL
2893 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2894 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2896 *) Use the correct content when signing type "other".
2899 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2901 *) Fix various bugs revealed by running the NISCC test suite:
2903 Stop out of bounds reads in the ASN1 code when presented with
2904 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2906 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2908 If verify callback ignores invalid public key errors don't try to check
2909 certificate signature with the NULL public key.
2913 *) New -ignore_err option in ocsp application to stop the server
2914 exiting on the first error in a request.
2917 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2918 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2922 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2923 extra data after the compression methods not only for TLS 1.0
2924 but also for SSL 3.0 (as required by the specification).
2925 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2927 *) Change X509_certificate_type() to mark the key as exported/exportable
2928 when it's 512 *bits* long, not 512 bytes.
2931 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2932 blocks during encryption.
2935 *) Various fixes to base64 BIO and non blocking I/O. On write
2936 flushes were not handled properly if the BIO retried. On read
2937 data was not being buffered properly and had various logic bugs.
2938 This also affects blocking I/O when the data being decoded is a
2942 *) Various S/MIME bugfixes and compatibility changes:
2943 output correct application/pkcs7 MIME type if
2944 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2945 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2946 of files as .eml work). Correctly handle very long lines in MIME
2950 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2952 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2953 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2954 a protocol version number mismatch like a decryption error
2955 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2958 *) Turn on RSA blinding by default in the default implementation
2959 to avoid a timing attack. Applications that don't want it can call
2960 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2961 They would be ill-advised to do so in most cases.
2962 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2964 *) Change RSA blinding code so that it works when the PRNG is not
2965 seeded (in this case, the secret RSA exponent is abused as
2966 an unpredictable seed -- if it is not unpredictable, there
2967 is no point in blinding anyway). Make RSA blinding thread-safe
2968 by remembering the creator's thread ID in rsa->blinding and
2969 having all other threads use local one-time blinding factors
2970 (this requires more computation than sharing rsa->blinding, but
2971 avoids excessive locking; and if an RSA object is not shared
2972 between threads, blinding will still be very fast).
2975 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2976 ENGINE as defaults for all supported algorithms irrespective of
2977 the 'flags' parameter. 'flags' is now honoured, so applications
2978 should make sure they are passing it correctly.
2981 *) Target "mingw" now allows native Windows code to be generated in
2982 the Cygwin environment as well as with the MinGW compiler.
2985 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2987 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2988 via timing by performing a MAC computation even if incorrrect
2989 block cipher padding has been found. This is a countermeasure
2990 against active attacks where the attacker has to distinguish
2991 between bad padding and a MAC verification error. (CVE-2003-0078)
2993 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2994 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2995 Martin Vuagnoux (EPFL, Ilion)]
2997 *) Make the no-err option work as intended. The intention with no-err
2998 is not to have the whole error stack handling routines removed from
2999 libcrypto, it's only intended to remove all the function name and
3000 reason texts, thereby removing some of the footprint that may not
3001 be interesting if those errors aren't displayed anyway.
3003 NOTE: it's still possible for any application or module to have it's
3004 own set of error texts inserted. The routines are there, just not
3005 used by default when no-err is given.
3008 *) Add support for FreeBSD on IA64.
3009 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3011 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3012 Kerberos function mit_des_cbc_cksum(). Before this change,
3013 the value returned by DES_cbc_cksum() was like the one from
3014 mit_des_cbc_cksum(), except the bytes were swapped.
3015 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3017 *) Allow an application to disable the automatic SSL chain building.
3018 Before this a rather primitive chain build was always performed in
3019 ssl3_output_cert_chain(): an application had no way to send the
3020 correct chain if the automatic operation produced an incorrect result.
3022 Now the chain builder is disabled if either:
3024 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3026 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3028 The reasoning behind this is that an application would not want the
3029 auto chain building to take place if extra chain certificates are
3030 present and it might also want a means of sending no additional
3031 certificates (for example the chain has two certificates and the
3035 *) Add the possibility to build without the ENGINE framework.
3036 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3038 *) Under Win32 gmtime() can return NULL: check return value in
3039 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3042 *) DSA routines: under certain error conditions uninitialized BN objects
3043 could be freed. Solution: make sure initialization is performed early
3044 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3045 Nils Larsch <nla@trustcenter.de> via PR#459)
3048 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3049 checked on reconnect on the client side, therefore session resumption
3050 could still fail with a "ssl session id is different" error. This
3051 behaviour is masked when SSL_OP_ALL is used due to
3052 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3053 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3054 followup to PR #377.
3057 *) IA-32 assembler support enhancements: unified ELF targets, support
3058 for SCO/Caldera platforms, fix for Cygwin shared build.
3061 *) Add support for FreeBSD on sparc64. As a consequence, support for
3062 FreeBSD on non-x86 processors is separate from x86 processors on
3063 the config script, much like the NetBSD support.
3064 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3066 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3068 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3071 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3072 code (06) was taken as the first octet of the session ID and the last
3073 octet was ignored consequently. As a result SSLv2 client side session
3074 caching could not have worked due to the session ID mismatch between
3076 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3080 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3081 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3085 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3086 seems that in spite of existing for more than a year, many application
3087 author have done nothing to provide the necessary callbacks, which
3088 means that this particular engine will not work properly anywhere.
3089 This is a very unfortunate situation which forces us, in the name
3090 of usability, to give the hw_ncipher.c a static lock, which is part
3092 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3093 appear in 0.9.8 or later. We EXPECT application authors to have
3094 dealt properly with this when 0.9.8 is released (unless we actually
3095 make such changes in the libcrypto locking code that changes will
3096 have to be made anyway).
3099 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3100 octets have been read, EOF or an error occurs. Without this change
3101 some truncated ASN1 structures will not produce an error.
3104 *) Disable Heimdal support, since it hasn't been fully implemented.
3105 Still give the possibility to force the use of Heimdal, but with
3106 warnings and a request that patches get sent to openssl-dev.
3109 *) Add the VC-CE target, introduce the WINCE sysname, and add
3110 INSTALL.WCE and appropriate conditionals to make it build.
3111 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3113 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3114 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3115 edit numbers of the version.
3116 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3118 *) Introduce safe string copy and catenation functions
3119 (BUF_strlcpy() and BUF_strlcat()).
3120 [Ben Laurie (CHATS) and Richard Levitte]
3122 *) Avoid using fixed-size buffers for one-line DNs.
3123 [Ben Laurie (CHATS)]
3125 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3126 resizing buffers containing secrets, and use where appropriate.
3127 [Ben Laurie (CHATS)]
3129 *) Avoid using fixed size buffers for configuration file location.
3130 [Ben Laurie (CHATS)]
3132 *) Avoid filename truncation for various CA files.
3133 [Ben Laurie (CHATS)]
3135 *) Use sizeof in preference to magic numbers.
3136 [Ben Laurie (CHATS)]
3138 *) Avoid filename truncation in cert requests.
3139 [Ben Laurie (CHATS)]
3141 *) Add assertions to check for (supposedly impossible) buffer
3143 [Ben Laurie (CHATS)]
3145 *) Don't cache truncated DNS entries in the local cache (this could
3146 potentially lead to a spoofing attack).
3147 [Ben Laurie (CHATS)]
3149 *) Fix various buffers to be large enough for hex/decimal
3150 representations in a platform independent manner.
3151 [Ben Laurie (CHATS)]
3153 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3154 resizing buffers containing secrets, and use where appropriate.
3155 [Ben Laurie (CHATS)]
3157 *) Add BIO_indent() to avoid much slightly worrying code to do
3159 [Ben Laurie (CHATS)]
3161 *) Convert sprintf()/BIO_puts() to BIO_printf().
3162 [Ben Laurie (CHATS)]
3164 *) buffer_gets() could terminate with the buffer only half
3166 [Ben Laurie (CHATS)]
3168 *) Add assertions to prevent user-supplied crypto functions from
3169 overflowing internal buffers by having large block sizes, etc.
3170 [Ben Laurie (CHATS)]
3172 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3174 [Ben Laurie (CHATS)]
3176 *) Eliminate unused copy of key in RC4.
3177 [Ben Laurie (CHATS)]
3179 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3180 [Ben Laurie (CHATS)]
3182 *) Fix off-by-one error in EGD path.
3183 [Ben Laurie (CHATS)]
3185 *) If RANDFILE path is too long, ignore instead of truncating.
3186 [Ben Laurie (CHATS)]
3188 *) Eliminate unused and incorrectly sized X.509 structure
3190 [Ben Laurie (CHATS)]
3192 *) Eliminate unused and dangerous function knumber().
3193 [Ben Laurie (CHATS)]
3195 *) Eliminate unused and dangerous structure, KSSL_ERR.
3196 [Ben Laurie (CHATS)]
3198 *) Protect against overlong session ID context length in an encoded
3199 session object. Since these are local, this does not appear to be
3201 [Ben Laurie (CHATS)]
3203 *) Change from security patch (see 0.9.6e below) that did not affect
3204 the 0.9.6 release series:
3206 Remote buffer overflow in SSL3 protocol - an attacker could
3207 supply an oversized master key in Kerberos-enabled versions.
3209 [Ben Laurie (CHATS)]
3211 *) Change the SSL kerb5 codes to match RFC 2712.
3214 *) Make -nameopt work fully for req and add -reqopt switch.
3215 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3217 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3218 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3220 *) Make sure tests can be performed even if the corresponding algorithms
3221 have been removed entirely. This was also the last step to make
3222 OpenSSL compilable with DJGPP under all reasonable conditions.
3223 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3225 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3226 to allow version independent disabling of normally unselected ciphers,
3227 which may be activated as a side-effect of selecting a single cipher.
3229 (E.g., cipher list string "RSA" enables ciphersuites that are left
3230 out of "ALL" because they do not provide symmetric encryption.
3231 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3232 [Lutz Jaenicke, Bodo Moeller]
3234 *) Add appropriate support for separate platform-dependent build
3235 directories. The recommended way to make a platform-dependent
3236 build directory is the following (tested on Linux), maybe with
3239 # Place yourself outside of the OpenSSL source tree. In
3240 # this example, the environment variable OPENSSL_SOURCE
3241 # is assumed to contain the absolute OpenSSL source directory.
3242 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3243 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3244 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3245 mkdir -p `dirname $F`
3246 ln -s $OPENSSL_SOURCE/$F $F
3249 To be absolutely sure not to disturb the source tree, a "make clean"
3250 is a good thing. If it isn't successfull, don't worry about it,
3251 it probably means the source directory is very clean.
3254 *) Make sure any ENGINE control commands make local copies of string
3255 pointers passed to them whenever necessary. Otherwise it is possible
3256 the caller may have overwritten (or deallocated) the original string
3257 data when a later ENGINE operation tries to use the stored values.
3258 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3260 *) Improve diagnostics in file reading and command-line digests.
3261 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3263 *) Add AES modes CFB and OFB to the object database. Correct an
3264 error in AES-CFB decryption.
3267 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3268 allows existing EVP_CIPHER_CTX structures to be reused after
3269 calling EVP_*Final(). This behaviour is used by encryption
3270 BIOs and some applications. This has the side effect that
3271 applications must explicitly clean up cipher contexts with
3272 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3275 *) Check the values of dna and dnb in bn_mul_recursive before calling
3276 bn_mul_comba (a non zero value means the a or b arrays do not contain
3277 n2 elements) and fallback to bn_mul_normal if either is not zero.
3280 *) Fix escaping of non-ASCII characters when using the -subj option
3281 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3284 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3285 form for "surname", serialNumber has no short form.
3286 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3287 therefore remove "mail" short name for "internet 7".
3288 The OID for unique identifiers in X509 certificates is
3289 x500UniqueIdentifier, not uniqueIdentifier.
3290 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3293 *) Add an "init" command to the ENGINE config module and auto initialize
3294 ENGINEs. Without any "init" command the ENGINE will be initialized
3295 after all ctrl commands have been executed on it. If init=1 the
3296 ENGINE is initailized at that point (ctrls before that point are run
3297 on the uninitialized ENGINE and after on the initialized one). If
3298 init=0 then the ENGINE will not be iniatialized at all.
3301 *) Fix the 'app_verify_callback' interface so that the user-defined
3302 argument is actually passed to the callback: In the
3303 SSL_CTX_set_cert_verify_callback() prototype, the callback
3304 declaration has been changed from
3307 int (*cb)(X509_STORE_CTX *,void *);
3308 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3309 i=s->ctx->app_verify_callback(&ctx)
3310 has been changed into
3311 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3313 To update applications using SSL_CTX_set_cert_verify_callback(),
3314 a dummy argument can be added to their callback functions.
3315 [D. K. Smetters <smetters@parc.xerox.com>]
3317 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3318 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3320 *) Add and OPENSSL_LOAD_CONF define which will cause
3321 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3322 This allows older applications to transparently support certain
3323 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3324 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3325 load the config file and OPENSSL_add_all_algorithms_conf() which will
3326 always load it have also been added.
3329 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3330 Adjust NIDs and EVP layer.
3331 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3333 *) Config modules support in openssl utility.
3335 Most commands now load modules from the config file,
3336 though in a few (such as version) this isn't done
3337 because it couldn't be used for anything.
3339 In the case of ca and req the config file used is
3340 the same as the utility itself: that is the -config
3341 command line option can be used to specify an
3345 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3346 use "openssl_conf" if filename is NULL use default openssl config file.
3349 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3350 config section name. Add a new flag to tolerate a missing config file
3351 and move code to CONF_modules_load_file().
3354 *) Support for crypto accelerator cards from Accelerated Encryption
3355 Processing, www.aep.ie. (Use engine 'aep')
3356 The support was copied from 0.9.6c [engine] and adapted/corrected
3357 to work with the new engine framework.
3358 [AEP Inc. and Richard Levitte]
3360 *) Support for SureWare crypto accelerator cards from Baltimore
3361 Technologies. (Use engine 'sureware')
3362 The support was copied from 0.9.6c [engine] and adapted
3363 to work with the new engine framework.
3366 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3367 make the newer ENGINE framework commands for the CHIL engine work.
3368 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3370 *) Make it possible to produce shared libraries on ReliantUNIX.
3371 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3373 *) Add the configuration target debug-linux-ppro.
3374 Make 'openssl rsa' use the general key loading routines
3375 implemented in apps.c, and make those routines able to
3376 handle the key format FORMAT_NETSCAPE and the variant
3378 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3380 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3381 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3383 *) Add -keyform to rsautl, and document -engine.
3384 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3386 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3387 BIO_R_NO_SUCH_FILE error code rather than the generic
3388 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3391 *) Add new functions
3393 ERR_peek_last_error_line
3394 ERR_peek_last_error_line_data.
3395 These are similar to
3398 ERR_peek_error_line_data,
3399 but report on the latest error recorded rather than the first one
3400 still in the error queue.
3401 [Ben Laurie, Bodo Moeller]
3403 *) default_algorithms option in ENGINE config module. This allows things
3405 default_algorithms = ALL
3406 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3409 *) Prelminary ENGINE config module.
3412 *) New experimental application configuration code.
3415 *) Change the AES code to follow the same name structure as all other
3416 symmetric ciphers, and behave the same way. Move everything to
3417 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3418 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3420 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3421 [Ben Laurie and Theo de Raadt]
3423 *) Add option to output public keys in req command.
3424 [Massimiliano Pala madwolf@openca.org]
3426 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3427 (up to about 10% better than before for P-192 and P-224).
3430 *) New functions/macros
3432 SSL_CTX_set_msg_callback(ctx, cb)
3433 SSL_CTX_set_msg_callback_arg(ctx, arg)
3434 SSL_set_msg_callback(ssl, cb)
3435 SSL_set_msg_callback_arg(ssl, arg)
3437 to request calling a callback function
3439 void cb(int write_p, int version, int content_type,
3440 const void *buf, size_t len, SSL *ssl, void *arg)
3442 whenever a protocol message has been completely received
3443 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3444 protocol version according to which the SSL library interprets
3445 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3446 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3447 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3448 specification (change_cipher_spec(20), alert(21), handshake(22)).
3449 'buf' and 'len' point to the actual message, 'ssl' to the
3450 SSL object, and 'arg' is the application-defined value set by
3451 SSL[_CTX]_set_msg_callback_arg().
3453 'openssl s_client' and 'openssl s_server' have new '-msg' options
3454 to enable a callback that displays all protocol messages.
3457 *) Change the shared library support so shared libraries are built as
3458 soon as the corresponding static library is finished, and thereby get
3459 openssl and the test programs linked against the shared library.
3460 This still only happens when the keyword "shard" has been given to
3461 the configuration scripts.
3463 NOTE: shared library support is still an experimental thing, and
3464 backward binary compatibility is still not guaranteed.
3465 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3467 *) Add support for Subject Information Access extension.
3468 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3470 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3471 additional bytes when new memory had to be allocated, not just
3472 when reusing an existing buffer.
3475 *) New command line and configuration option 'utf8' for the req command.
3476 This allows field values to be specified as UTF8 strings.
3479 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3480 runs for the former and machine-readable output for the latter.
3483 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3484 of the e-mail address in the DN (i.e., it will go into a certificate
3485 extension only). The new configuration file option 'email_in_dn = no'
3486 has the same effect.
3487 [Massimiliano Pala madwolf@openca.org]
3489 *) Change all functions with names starting with des_ to be starting
3490 with DES_ instead. Add wrappers that are compatible with libdes,
3491 but are named _ossl_old_des_*. Finally, add macros that map the
3492 des_* symbols to the corresponding _ossl_old_des_* if libdes
3493 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3494 desired, the des_* symbols will be mapped to DES_*, with one
3497 Since we provide two compatibility mappings, the user needs to
3498 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3499 compatibility is desired. The default (i.e., when that macro
3500 isn't defined) is OpenSSL 0.9.6c compatibility.
3502 There are also macros that enable and disable the support of old
3503 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3504 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3505 are defined, the default will apply: to support the old des routines.
3507 In either case, one must include openssl/des.h to get the correct
3508 definitions. Do not try to just include openssl/des_old.h, that
3511 NOTE: This is a major break of an old API into a new one. Software
3512 authors are encouraged to switch to the DES_ style functions. Some
3513 time in the future, des_old.h and the libdes compatibility functions
3514 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3515 default), and then completely removed.
3518 *) Test for certificates which contain unsupported critical extensions.
3519 If such a certificate is found during a verify operation it is
3520 rejected by default: this behaviour can be overridden by either
3521 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3522 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3523 X509_supported_extension() has also been added which returns 1 if a
3524 particular extension is supported.
3527 *) Modify the behaviour of EVP cipher functions in similar way to digests
3528 to retain compatibility with existing code.
3531 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3532 compatibility with existing code. In particular the 'ctx' parameter does
3533 not have to be to be initialized before the call to EVP_DigestInit() and
3534 it is tidied up after a call to EVP_DigestFinal(). New function
3535 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3536 EVP_MD_CTX_copy() changed to not require the destination to be
3537 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3538 requires the destination to be valid.
3540 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3541 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3544 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3545 so that complete 'Handshake' protocol structures are kept in memory
3546 instead of overwriting 'msg_type' and 'length' with 'body' data.
3549 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3550 [Massimo Santin via Richard Levitte]
3552 *) Major restructuring to the underlying ENGINE code. This includes
3553 reduction of linker bloat, separation of pure "ENGINE" manipulation
3554 (initialisation, etc) from functionality dealing with implementations
3555 of specific crypto iterfaces. This change also introduces integrated
3556 support for symmetric ciphers and digest implementations - so ENGINEs
3557 can now accelerate these by providing EVP_CIPHER and EVP_MD
3558 implementations of their own. This is detailed in crypto/engine/README
3559 as it couldn't be adequately described here. However, there are a few
3560 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3561 were changed in the original introduction of ENGINE code have now
3562 reverted back - the hooking from this code to ENGINE is now a good
3563 deal more passive and at run-time, operations deal directly with
3564 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3565 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3566 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3567 they were not being used by the framework as there is no concept of a
3568 BIGNUM_METHOD and they could not be generalised to the new
3569 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3570 ENGINE_cpy() has been removed as it cannot be consistently defined in
3574 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3577 *) Change mkdef.pl to sort symbols that get the same entry number,
3578 and make sure the automatically generated functions ERR_load_*
3579 become part of libeay.num as well.
3582 *) New function SSL_renegotiate_pending(). This returns true once
3583 renegotiation has been requested (either SSL_renegotiate() call
3584 or HelloRequest/ClientHello receveived from the peer) and becomes
3585 false once a handshake has been completed.
3586 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3587 sends a HelloRequest, but does not ensure that a handshake takes
3588 place. SSL_renegotiate_pending() is useful for checking if the
3589 client has followed the request.)
3592 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3593 By default, clients may request session resumption even during
3594 renegotiation (if session ID contexts permit); with this option,
3595 session resumption is possible only in the first handshake.
3597 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3598 more bits available for options that should not be part of
3599 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3602 *) Add some demos for certificate and certificate request creation.
3605 *) Make maximum certificate chain size accepted from the peer application
3606 settable (SSL*_get/set_max_cert_list()), as proposed by
3607 "Douglas E. Engert" <deengert@anl.gov>.
3610 *) Add support for shared libraries for Unixware-7
3611 (Boyd Lynn Gerber <gerberb@zenez.com>).
3614 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3615 be done prior to destruction. Use this to unload error strings from
3616 ENGINEs that load their own error strings. NB: This adds two new API
3617 functions to "get" and "set" this destroy handler in an ENGINE.
3620 *) Alter all existing ENGINE implementations (except "openssl" and
3621 "openbsd") to dynamically instantiate their own error strings. This
3622 makes them more flexible to be built both as statically-linked ENGINEs
3623 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3624 Also, add stub code to each that makes building them as self-contained
3625 shared-libraries easier (see README.ENGINE).
3628 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3629 implementations into applications that are completely implemented in
3630 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3631 commands that can be used to configure what shared-library to load and
3632 to control aspects of the way it is handled. Also, made an update to
3633 the README.ENGINE file that brings its information up-to-date and
3634 provides some information and instructions on the "dynamic" ENGINE
3635 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3638 *) Make it possible to unload ranges of ERR strings with a new
3639 "ERR_unload_strings" function.
3642 *) Add a copy() function to EVP_MD.
3645 *) Make EVP_MD routines take a context pointer instead of just the
3646 md_data void pointer.
3649 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3650 that the digest can only process a single chunk of data
3651 (typically because it is provided by a piece of
3652 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3653 is only going to provide a single chunk of data, and hence the
3654 framework needn't accumulate the data for oneshot drivers.
3657 *) As with "ERR", make it possible to replace the underlying "ex_data"
3658 functions. This change also alters the storage and management of global
3659 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3660 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3661 index counters. The API functions that use this state have been changed
3662 to take a "class_index" rather than pointers to the class's local STACK
3663 and counter, and there is now an API function to dynamically create new
3664 classes. This centralisation allows us to (a) plug a lot of the
3665 thread-safety problems that existed, and (b) makes it possible to clean
3666 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3667 such data would previously have always leaked in application code and
3668 workarounds were in place to make the memory debugging turn a blind eye
3669 to it. Application code that doesn't use this new function will still
3670 leak as before, but their memory debugging output will announce it now
3671 rather than letting it slide.
3673 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3674 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3675 has a return value to indicate success or failure.
3678 *) Make it possible to replace the underlying "ERR" functions such that the
3679 global state (2 LHASH tables and 2 locks) is only used by the "default"
3680 implementation. This change also adds two functions to "get" and "set"
3681 the implementation prior to it being automatically set the first time
3682 any other ERR function takes place. Ie. an application can call "get",
3683 pass the return value to a module it has just loaded, and that module
3684 can call its own "set" function using that value. This means the
3685 module's "ERR" operations will use (and modify) the error state in the
3686 application and not in its own statically linked copy of OpenSSL code.
3689 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3690 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3691 the operation, and provides a more encapsulated way for external code
3692 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3693 to use these functions rather than manually incrementing the counts.
3695 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3698 *) Add EVP test program.
3701 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3704 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3705 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3706 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3707 These allow a CRL to be built without having to access X509_CRL fields
3708 directly. Modify 'ca' application to use new functions.
3711 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3712 bug workarounds. Rollback attack detection is a security feature.
3713 The problem will only arise on OpenSSL servers when TLSv1 is not
3714 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3715 Software authors not wanting to support TLSv1 will have special reasons
3716 for their choice and can explicitly enable this option.
3717 [Bodo Moeller, Lutz Jaenicke]
3719 *) Rationalise EVP so it can be extended: don't include a union of
3720 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3721 (similar to those existing for EVP_CIPHER_CTX).
3726 EVP_MD_CTX_init(&md); /* new function call */
3727 EVP_DigestInit(&md, EVP_sha1());
3728 EVP_DigestUpdate(&md, in, len);
3729 EVP_DigestFinal(&md, out, NULL);
3730 EVP_MD_CTX_cleanup(&md); /* new function call */
3734 *) Make DES key schedule conform to the usual scheme, as well as
3735 correcting its structure. This means that calls to DES functions
3736 now have to pass a pointer to a des_key_schedule instead of a
3737 plain des_key_schedule (which was actually always a pointer
3740 des_key_schedule ks;
3742 des_set_key_checked(..., &ks);
3743 des_ncbc_encrypt(..., &ks, ...);
3745 (Note that a later change renames 'des_...' into 'DES_...'.)
3748 *) Initial reduction of linker bloat: the use of some functions, such as
3749 PEM causes large amounts of unused functions to be linked in due to
3750 poor organisation. For example pem_all.c contains every PEM function
3751 which has a knock on effect of linking in large amounts of (unused)
3752 ASN1 code. Grouping together similar functions and splitting unrelated
3753 functions prevents this.
3756 *) Cleanup of EVP macros.
3759 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3760 correct _ecb suffix.
3763 *) Add initial OCSP responder support to ocsp application. The
3764 revocation information is handled using the text based index
3765 use by the ca application. The responder can either handle
3766 requests generated internally, supplied in files (for example
3767 via a CGI script) or using an internal minimal server.
3770 *) Add configuration choices to get zlib compression for TLS.
3773 *) Changes to Kerberos SSL for RFC 2712 compliance:
3774 1. Implemented real KerberosWrapper, instead of just using
3775 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3776 2. Implemented optional authenticator field of KerberosWrapper.
3778 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3779 and authenticator structs; see crypto/krb5/.
3781 Generalized Kerberos calls to support multiple Kerberos libraries.
3782 [Vern Staats <staatsvr@asc.hpc.mil>,
3783 Jeffrey Altman <jaltman@columbia.edu>
3784 via Richard Levitte]
3786 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3787 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3788 values for each of the key sizes rather than having just
3789 parameters (and 'speed' generating keys each time).
3792 *) Speed up EVP routines.
3795 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3796 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3797 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3798 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3800 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3801 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3802 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3805 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3807 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3810 *) Added the OS2-EMX target.
3811 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3813 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3814 to support NCONF routines in extension code. New function CONF_set_nconf()
3815 to allow functions which take an NCONF to also handle the old LHASH
3816 structure: this means that the old CONF compatible routines can be
3817 retained (in particular wrt extensions) without having to duplicate the
3818 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3821 *) Enhance the general user interface with mechanisms for inner control
3822 and with possibilities to have yes/no kind of prompts.
3825 *) Change all calls to low level digest routines in the library and
3826 applications to use EVP. Add missing calls to HMAC_cleanup() and
3827 don't assume HMAC_CTX can be copied using memcpy().
3828 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3830 *) Add the possibility to control engines through control names but with
3831 arbitrary arguments instead of just a string.
3832 Change the key loaders to take a UI_METHOD instead of a callback
3833 function pointer. NOTE: this breaks binary compatibility with earlier
3834 versions of OpenSSL [engine].
3835 Adapt the nCipher code for these new conditions and add a card insertion
3839 *) Enhance the general user interface with mechanisms to better support
3840 dialog box interfaces, application-defined prompts, the possibility
3841 to use defaults (for example default passwords from somewhere else)
3842 and interrupts/cancellations.
3845 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3846 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3849 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3850 tidy up some unnecessarily weird code in 'sk_new()').
3851 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3853 *) Change the key loading routines for ENGINEs to use the same kind
3854 callback (pem_password_cb) as all other routines that need this
3858 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3859 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3860 than this minimum value is recommended.
3863 *) New random seeder for OpenVMS, using the system process statistics
3864 that are easily reachable.
3867 *) Windows apparently can't transparently handle global
3868 variables defined in DLLs. Initialisations such as:
3870 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3872 wont compile. This is used by the any applications that need to
3873 declare their own ASN1 modules. This was fixed by adding the option
3874 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3875 needed for static libraries under Win32.
3878 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3879 setting of purpose and trust fields. New X509_STORE trust and
3880 purpose functions and tidy up setting in other SSL functions.
3883 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3884 structure. These are inherited by X509_STORE_CTX when it is
3885 initialised. This allows various defaults to be set in the
3886 X509_STORE structure (such as flags for CRL checking and custom
3887 purpose or trust settings) for functions which only use X509_STORE_CTX
3888 internally such as S/MIME.
3890 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3891 trust settings if they are not set in X509_STORE. This allows X509_STORE
3892 purposes and trust (in S/MIME for example) to override any set by default.
3894 Add command line options for CRL checking to smime, s_client and s_server
3898 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3899 are set then the CRL is looked up in the X509_STORE structure and
3900 its validity and signature checked, then if the certificate is found
3901 in the CRL the verify fails with a revoked error.
3903 Various new CRL related callbacks added to X509_STORE_CTX structure.
3905 Command line options added to 'verify' application to support this.
3907 This needs some additional work, such as being able to handle multiple
3908 CRLs with different times, extension based lookup (rather than just
3909 by subject name) and ultimately more complete V2 CRL extension
3913 *) Add a general user interface API (crypto/ui/). This is designed
3914 to replace things like des_read_password and friends (backward
3915 compatibility functions using this new API are provided).
3916 The purpose is to remove prompting functions from the DES code
3917 section as well as provide for prompting through dialog boxes in
3918 a window system and the like.
3921 *) Add "ex_data" support to ENGINE so implementations can add state at a
3922 per-structure level rather than having to store it globally.
3925 *) Make it possible for ENGINE structures to be copied when retrieved by
3926 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3927 This causes the "original" ENGINE structure to act like a template,
3928 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3929 operational state can be localised to each ENGINE structure, despite the
3930 fact they all share the same "methods". New ENGINE structures returned in
3931 this case have no functional references and the return value is the single
3932 structural reference. This matches the single structural reference returned
3933 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3937 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3938 needs to match any other type at all we need to manually clear the
3942 *) Changes to the "openssl engine" utility to include;
3943 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3944 about an ENGINE's available control commands.
3945 - executing control commands from command line arguments using the
3946 '-pre' and '-post' switches. '-post' is only used if '-t' is
3947 specified and the ENGINE is successfully initialised. The syntax for
3948 the individual commands are colon-separated, for example;
3949 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3952 *) New dynamic control command support for ENGINEs. ENGINEs can now
3953 declare their own commands (numbers), names (strings), descriptions,
3954 and input types for run-time discovery by calling applications. A
3955 subset of these commands are implicitly classed as "executable"
3956 depending on their input type, and only these can be invoked through
3957 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3958 can be based on user input, config files, etc). The distinction is
3959 that "executable" commands cannot return anything other than a boolean
3960 result and can only support numeric or string input, whereas some
3961 discoverable commands may only be for direct use through
3962 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3963 pointers, or other custom uses. The "executable" commands are to
3964 support parameterisations of ENGINE behaviour that can be
3965 unambiguously defined by ENGINEs and used consistently across any
3966 OpenSSL-based application. Commands have been added to all the
3967 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3968 control over shared-library paths without source code alterations.
3971 *) Changed all ENGINE implementations to dynamically allocate their
3972 ENGINEs rather than declaring them statically. Apart from this being
3973 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3974 this also allows the implementations to compile without using the
3975 internal engine_int.h header.
3978 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3979 'const' value. Any code that should be able to modify a RAND_METHOD
3980 should already have non-const pointers to it (ie. they should only
3981 modify their own ones).
3984 *) Made a variety of little tweaks to the ENGINE code.
3985 - "atalla" and "ubsec" string definitions were moved from header files
3986 to C code. "nuron" string definitions were placed in variables
3987 rather than hard-coded - allowing parameterisation of these values
3988 later on via ctrl() commands.
3989 - Removed unused "#if 0"'d code.
3990 - Fixed engine list iteration code so it uses ENGINE_free() to release
3991 structural references.
3992 - Constified the RAND_METHOD element of ENGINE structures.
3993 - Constified various get/set functions as appropriate and added
3994 missing functions (including a catch-all ENGINE_cpy that duplicates
3995 all ENGINE values onto a new ENGINE except reference counts/state).
3996 - Removed NULL parameter checks in get/set functions. Setting a method
3997 or function to NULL is a way of cancelling out a previously set
3998 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3999 and doesn't justify the extra error symbols and code.
4000 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4001 flags from engine_int.h to engine.h.
4002 - Changed prototypes for ENGINE handler functions (init(), finish(),
4003 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4006 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4007 to the algorithm using long division. The binary algorithm can be
4008 used only if the modulus is odd. On 32-bit systems, it is faster
4009 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4010 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4011 up to 450 bits. In 64-bit environments, the binary algorithm
4012 appears to be advantageous for much longer moduli; here we use it
4013 for moduli up to 2048 bits.
4016 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4017 could not support the combine flag in choice fields.
4020 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4021 extensions from a certificate request to the certificate.
4024 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4025 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4026 file: this allows the display of the certificate about to be
4027 signed to be customised, to allow certain fields to be included
4028 or excluded and extension details. The old system didn't display
4029 multicharacter strings properly, omitted fields not in the policy
4030 and couldn't display additional details such as extensions.
4033 *) Function EC_POINTs_mul for multiple scalar multiplication
4034 of an arbitrary number of elliptic curve points
4035 \sum scalars[i]*points[i],
4036 optionally including the generator defined for the EC_GROUP:
4037 scalar*generator + \sum scalars[i]*points[i].
4039 EC_POINT_mul is a simple wrapper function for the typical case
4040 that the point list has just one item (besides the optional
4044 *) First EC_METHODs for curves over GF(p):
4046 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4047 operations and provides various method functions that can also
4048 operate with faster implementations of modular arithmetic.
4050 EC_GFp_mont_method() reuses most functions that are part of
4051 EC_GFp_simple_method, but uses Montgomery arithmetic.
4053 [Bodo Moeller; point addition and point doubling
4054 implementation directly derived from source code provided by
4055 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4057 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4058 crypto/ec/ec_lib.c):
4060 Curves are EC_GROUP objects (with an optional group generator)
4061 based on EC_METHODs that are built into the library.
4063 Points are EC_POINT objects based on EC_GROUP objects.
4065 Most of the framework would be able to handle curves over arbitrary
4066 finite fields, but as there are no obvious types for fields other
4067 than GF(p), some functions are limited to that for now.
4070 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4071 that the file contains a complete HTTP response.
4074 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4075 change the def and num file printf format specifier from "%-40sXXX"
4076 to "%-39s XXX". The latter will always guarantee a space after the
4077 field while the former will cause them to run together if the field
4078 is 40 of more characters long.
4081 *) Constify the cipher and digest 'method' functions and structures
4082 and modify related functions to take constant EVP_MD and EVP_CIPHER
4086 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4087 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4090 *) Modify EVP_Digest*() routines so they now return values. Although the
4091 internal software routines can never fail additional hardware versions
4095 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4097 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4098 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4101 ERR_R_NESTED_ASN1_ERROR
4103 ERR_R_MISSING_ASN1_EOS
4104 were 4 .. 9, conflicting with
4105 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4107 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4108 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4110 Add new error code 'ERR_R_INTERNAL_ERROR'.
4113 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4117 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4118 sets the subject name for a new request or supersedes the
4119 subject name in a given request. Formats that can be parsed are
4120 'CN=Some Name, OU=myOU, C=IT'
4122 'CN=Some Name/OU=myOU/C=IT'.
4124 Add options '-batch' and '-verbose' to 'openssl req'.
4125 [Massimiliano Pala <madwolf@hackmasters.net>]
4127 *) Introduce the possibility to access global variables through
4128 functions on platform were that's the best way to handle exporting
4129 global variables in shared libraries. To enable this functionality,
4130 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4131 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4132 is normally done by Configure or something similar).
4134 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4135 in the source file (foo.c) like this:
4137 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4138 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4140 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4141 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4143 OPENSSL_DECLARE_GLOBAL(int,foo);
4144 #define foo OPENSSL_GLOBAL_REF(foo)
4145 OPENSSL_DECLARE_GLOBAL(double,bar);
4146 #define bar OPENSSL_GLOBAL_REF(bar)
4148 The #defines are very important, and therefore so is including the
4149 header file everywhere where the defined globals are used.
4151 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4152 of ASN.1 items, but that structure is a bit different.
4154 The largest change is in util/mkdef.pl which has been enhanced with
4155 better and easier to understand logic to choose which symbols should
4156 go into the Windows .def files as well as a number of fixes and code
4157 cleanup (among others, algorithm keywords are now sorted
4158 lexicographically to avoid constant rewrites).
4161 *) In BN_div() keep a copy of the sign of 'num' before writing the
4162 result to 'rm' because if rm==num the value will be overwritten
4163 and produce the wrong result if 'num' is negative: this caused
4164 problems with BN_mod() and BN_nnmod().
4167 *) Function OCSP_request_verify(). This checks the signature on an
4168 OCSP request and verifies the signer certificate. The signer
4169 certificate is just checked for a generic purpose and OCSP request
4173 *) Add OCSP_check_validity() function to check the validity of OCSP
4174 responses. OCSP responses are prepared in real time and may only
4175 be a few seconds old. Simply checking that the current time lies
4176 between thisUpdate and nextUpdate max reject otherwise valid responses
4177 caused by either OCSP responder or client clock inaccuracy. Instead
4178 we allow thisUpdate and nextUpdate to fall within a certain period of
4179 the current time. The age of the response can also optionally be
4180 checked. Two new options -validity_period and -status_age added to
4184 *) If signature or public key algorithm is unrecognized print out its
4185 OID rather that just UNKNOWN.
4188 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4189 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4190 ID to be generated from the issuer certificate alone which can then be
4191 passed to OCSP_id_issuer_cmp().
4194 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4195 ASN1 modules to export functions returning ASN1_ITEM pointers
4196 instead of the ASN1_ITEM structures themselves. This adds several
4197 new macros which allow the underlying ASN1 function/structure to
4198 be accessed transparently. As a result code should not use ASN1_ITEM
4199 references directly (such as &X509_it) but instead use the relevant
4200 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4201 use of the new ASN1 code on platforms where exporting structures
4202 is problematical (for example in shared libraries) but exporting
4203 functions returning pointers to structures is not.
4206 *) Add support for overriding the generation of SSL/TLS session IDs.
4207 These callbacks can be registered either in an SSL_CTX or per SSL.
4208 The purpose of this is to allow applications to control, if they wish,
4209 the arbitrary values chosen for use as session IDs, particularly as it
4210 can be useful for session caching in multiple-server environments. A
4211 command-line switch for testing this (and any client code that wishes
4212 to use such a feature) has been added to "s_server".
4213 [Geoff Thorpe, Lutz Jaenicke]
4215 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4216 of the form '#if defined(...) || defined(...) || ...' and
4217 '#if !defined(...) && !defined(...) && ...'. This also avoids
4218 the growing number of special cases it was previously handling.
4221 *) Make all configuration macros available for application by making
4222 sure they are available in opensslconf.h, by giving them names starting
4223 with "OPENSSL_" to avoid conflicts with other packages and by making
4224 sure e_os2.h will cover all platform-specific cases together with
4226 Additionally, it is now possible to define configuration/platform-
4227 specific names (called "system identities"). In the C code, these
4228 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4229 macro with the name beginning with "OPENSSL_SYS_", which is determined
4230 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4234 *) New option -set_serial to 'req' and 'x509' this allows the serial
4235 number to use to be specified on the command line. Previously self
4236 signed certificates were hard coded with serial number 0 and the
4237 CA options of 'x509' had to use a serial number in a file which was
4241 *) New options to 'ca' utility to support V2 CRL entry extensions.
4242 Currently CRL reason, invalidity date and hold instruction are
4243 supported. Add new CRL extensions to V3 code and some new objects.
4246 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4247 disable standard block padding (aka PKCS#5 padding) in the EVP
4248 API, which was previously mandatory. This means that the data is
4249 not padded in any way and so the total length much be a multiple
4250 of the block size, otherwise an error occurs.
4253 *) Initial (incomplete) OCSP SSL support.
4256 *) New function OCSP_parse_url(). This splits up a URL into its host,
4257 port and path components: primarily to parse OCSP URLs. New -url
4258 option to ocsp utility.
4261 *) New nonce behavior. The return value of OCSP_check_nonce() now
4262 reflects the various checks performed. Applications can decide
4263 whether to tolerate certain situations such as an absent nonce
4264 in a response when one was present in a request: the ocsp application
4265 just prints out a warning. New function OCSP_add1_basic_nonce()
4266 this is to allow responders to include a nonce in a response even if
4267 the request is nonce-less.
4270 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4271 skipped when using openssl x509 multiple times on a single input file,
4272 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4275 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4276 set string type: to handle setting ASN1_TIME structures. Fix ca
4277 utility to correctly initialize revocation date of CRLs.
4280 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4281 the clients preferred ciphersuites and rather use its own preferences.
4282 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4283 Internet Explorer by ensuring unchanged hash method during stepup.
4284 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4287 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4288 to aes and add a new 'exist' option to print out symbols that don't
4292 *) Additional options to ocsp utility to allow flags to be set and
4293 additional certificates supplied.
4296 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4297 OCSP client a number of certificate to only verify the response
4301 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4302 handle the new API. Currently only ECB, CBC modes supported. Add new
4305 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4306 Encryption Standard (AES) Ciphersuites for Transport Layer
4307 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4308 not enabled by default and were not part of the "ALL" ciphersuite
4309 alias because they were not yet official; they could be
4310 explicitly requested by specifying the "AESdraft" ciphersuite
4311 group alias. In the final release of OpenSSL 0.9.7, the group
4312 alias is called "AES" and is part of "ALL".)
4313 [Ben Laurie, Steve Henson, Bodo Moeller]
4315 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4316 request to response.
4319 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4320 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4321 extract information from a certificate request. OCSP_response_create()
4322 creates a response and optionally adds a basic response structure.
4323 OCSP_basic_add1_status() adds a complete single response to a basic
4324 response and returns the OCSP_SINGLERESP structure just added (to allow
4325 extensions to be included for example). OCSP_basic_add1_cert() adds a
4326 certificate to a basic response and OCSP_basic_sign() signs a basic
4327 response with various flags. New helper functions ASN1_TIME_check()
4328 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4329 (converts ASN1_TIME to GeneralizedTime).
4332 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4333 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4334 structure from a certificate. X509_pubkey_digest() digests the public_key
4335 contents: this is used in various key identifiers.
4338 *) Make sk_sort() tolerate a NULL argument.
4339 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4341 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4342 passed by the function are trusted implicitly. If any of them signed the
4343 response then it is assumed to be valid and is not verified.
4346 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4347 to data. This was previously part of the PKCS7 ASN1 code. This
4348 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4349 [Steve Henson, reported by Kenneth R. Robinette
4350 <support@securenetterm.com>]
4352 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4353 routines: without these tracing memory leaks is very painful.
4354 Fix leaks in PKCS12 and PKCS7 routines.
4357 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4358 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4359 effectively meant GeneralizedTime would never be used. Now it
4360 is initialised to -1 but X509_time_adj() now has to check the value
4361 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4362 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4363 [Steve Henson, reported by Kenneth R. Robinette
4364 <support@securenetterm.com>]
4366 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4367 result in a zero length in the ASN1_INTEGER structure which was
4368 not consistent with the structure when d2i_ASN1_INTEGER() was used
4369 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4370 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4371 where it did not print out a minus for negative ASN1_INTEGER.
4374 *) Add summary printout to ocsp utility. The various functions which
4375 convert status values to strings have been renamed to:
4376 OCSP_response_status_str(), OCSP_cert_status_str() and
4377 OCSP_crl_reason_str() and are no longer static. New options
4378 to verify nonce values and to disable verification. OCSP response
4379 printout format cleaned up.
4382 *) Add additional OCSP certificate checks. These are those specified
4383 in RFC2560. This consists of two separate checks: the CA of the
4384 certificate being checked must either be the OCSP signer certificate
4385 or the issuer of the OCSP signer certificate. In the latter case the
4386 OCSP signer certificate must contain the OCSP signing extended key
4387 usage. This check is performed by attempting to match the OCSP
4388 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4389 in the OCSP_CERTID structures of the response.
4392 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4393 and related routines. This uses the standard OpenSSL certificate
4394 verify routines to perform initial checks (just CA validity) and
4395 to obtain the certificate chain. Then additional checks will be
4396 performed on the chain. Currently the root CA is checked to see
4397 if it is explicitly trusted for OCSP signing. This is used to set
4398 a root CA as a global signing root: that is any certificate that
4399 chains to that CA is an acceptable OCSP signing certificate.
4402 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4403 extensions from a separate configuration file.
4404 As when reading extensions from the main configuration file,
4405 the '-extensions ...' option may be used for specifying the
4407 [Massimiliano Pala <madwolf@comune.modena.it>]
4409 *) New OCSP utility. Allows OCSP requests to be generated or
4410 read. The request can be sent to a responder and the output
4411 parsed, outputed or printed in text form. Not complete yet:
4412 still needs to check the OCSP response validity.
4415 *) New subcommands for 'openssl ca':
4416 'openssl ca -status <serial>' prints the status of the cert with
4417 the given serial number (according to the index file).
4418 'openssl ca -updatedb' updates the expiry status of certificates
4420 [Massimiliano Pala <madwolf@comune.modena.it>]
4422 *) New '-newreq-nodes' command option to CA.pl. This is like
4423 '-newreq', but calls 'openssl req' with the '-nodes' option
4424 so that the resulting key is not encrypted.
4425 [Damien Miller <djm@mindrot.org>]
4427 *) New configuration for the GNU Hurd.
4428 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4430 *) Initial code to implement OCSP basic response verify. This
4431 is currently incomplete. Currently just finds the signer's
4432 certificate and verifies the signature on the response.
4435 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4436 value of OPENSSLDIR. This is available via the new '-d' option
4437 to 'openssl version', and is also included in 'openssl version -a'.
4440 *) Allowing defining memory allocation callbacks that will be given
4441 file name and line number information in additional arguments
4442 (a const char* and an int). The basic functionality remains, as
4443 well as the original possibility to just replace malloc(),
4444 realloc() and free() by functions that do not know about these
4445 additional arguments. To register and find out the current
4446 settings for extended allocation functions, the following
4447 functions are provided:
4449 CRYPTO_set_mem_ex_functions
4450 CRYPTO_set_locked_mem_ex_functions
4451 CRYPTO_get_mem_ex_functions
4452 CRYPTO_get_locked_mem_ex_functions
4454 These work the same way as CRYPTO_set_mem_functions and friends.
4455 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4456 extended allocation function is enabled.
4457 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4458 a conventional allocation function is enabled.
4459 [Richard Levitte, Bodo Moeller]
4461 *) Finish off removing the remaining LHASH function pointer casts.
4462 There should no longer be any prototype-casting required when using
4463 the LHASH abstraction, and any casts that remain are "bugs". See
4464 the callback types and macros at the head of lhash.h for details
4465 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4468 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4469 If /dev/[u]random devices are not available or do not return enough
4470 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4472 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4473 /etc/entropy will be queried once each in this sequence, quering stops
4474 when enough entropy was collected without querying more sockets.
4477 *) Change the Unix RAND_poll() variant to be able to poll several
4478 random devices, as specified by DEVRANDOM, until a sufficient amount
4479 of data has been collected. We spend at most 10 ms on each file
4480 (select timeout) and read in non-blocking mode. DEVRANDOM now
4481 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4482 (previously it was just the string "/dev/urandom"), so on typical
4483 platforms the 10 ms delay will never occur.
4484 Also separate out the Unix variant to its own file, rand_unix.c.
4485 For VMS, there's a currently-empty rand_vms.c.
4488 *) Move OCSP client related routines to ocsp_cl.c. These
4489 provide utility functions which an application needing
4490 to issue a request to an OCSP responder and analyse the
4491 response will typically need: as opposed to those which an
4492 OCSP responder itself would need which will be added later.
4494 OCSP_request_sign() signs an OCSP request with an API similar
4495 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4496 response. OCSP_response_get1_basic() extracts basic response
4497 from response. OCSP_resp_find_status(): finds and extracts status
4498 information from an OCSP_CERTID structure (which will be created
4499 when the request structure is built). These are built from lower
4500 level functions which work on OCSP_SINGLERESP structures but
4501 wont normally be used unless the application wishes to examine
4502 extensions in the OCSP response for example.
4504 Replace nonce routines with a pair of functions.
4505 OCSP_request_add1_nonce() adds a nonce value and optionally
4506 generates a random value. OCSP_check_nonce() checks the
4507 validity of the nonce in an OCSP response.
4510 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4511 This doesn't copy the supplied OCSP_CERTID and avoids the
4512 need to free up the newly created id. Change return type
4513 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4514 This can then be used to add extensions to the request.
4515 Deleted OCSP_request_new(), since most of its functionality
4516 is now in OCSP_REQUEST_new() (and the case insensitive name
4517 clash) apart from the ability to set the request name which
4518 will be added elsewhere.
4521 *) Update OCSP API. Remove obsolete extensions argument from
4522 various functions. Extensions are now handled using the new
4523 OCSP extension code. New simple OCSP HTTP function which
4524 can be used to send requests and parse the response.
4527 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4528 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4529 uses the special reorder version of SET OF to sort the attributes
4530 and reorder them to match the encoded order. This resolves a long
4531 standing problem: a verify on a PKCS7 structure just after signing
4532 it used to fail because the attribute order did not match the
4533 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4534 it uses the received order. This is necessary to tolerate some broken
4535 software that does not order SET OF. This is handled by encoding
4536 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4537 to produce the required SET OF.
4540 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4541 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4542 files to get correct declarations of the ASN.1 item variables.
4545 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4546 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4547 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4548 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4549 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4550 ASN1_ITEM and no wrapper functions.
4553 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4554 replace the old function pointer based I/O routines. Change most of
4555 the *_d2i_bio() and *_d2i_fp() functions to use these.
4558 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4559 lines, recognice more "algorithms" that can be deselected, and make
4560 it complain about algorithm deselection that isn't recognised.
4563 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4564 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4565 to use new functions. Add NO_ASN1_OLD which can be set to remove
4566 some old style ASN1 functions: this can be used to determine if old
4567 code will still work when these eventually go away.
4570 *) New extension functions for OCSP structures, these follow the
4571 same conventions as certificates and CRLs.
4574 *) New function X509V3_add1_i2d(). This automatically encodes and
4575 adds an extension. Its behaviour can be customised with various
4576 flags to append, replace or delete. Various wrappers added for
4577 certifcates and CRLs.
4580 *) Fix to avoid calling the underlying ASN1 print routine when
4581 an extension cannot be parsed. Correct a typo in the
4582 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4585 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4586 entries for variables.
4589 *) Add functionality to apps/openssl.c for detecting locking
4590 problems: As the program is single-threaded, all we have
4591 to do is register a locking callback using an array for
4592 storing which locks are currently held by the program.
4595 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4596 SSL_get_ex_data_X509_STORE_idx(), which is used in
4597 ssl_verify_cert_chain() and thus can be called at any time
4598 during TLS/SSL handshakes so that thread-safety is essential.
4599 Unfortunately, the ex_data design is not at all suited
4600 for multi-threaded use, so it probably should be abolished.
4603 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4604 [Broadcom, tweaked and integrated by Geoff Thorpe]
4606 *) Move common extension printing code to new function
4607 X509V3_print_extensions(). Reorganise OCSP print routines and
4608 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4611 *) New function X509_signature_print() to remove duplication in some
4615 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4616 set (this was treated exactly the same as SET OF previously). This
4617 is used to reorder the STACK representing the structure to match the
4618 encoding. This will be used to get round a problem where a PKCS7
4619 structure which was signed could not be verified because the STACK
4620 order did not reflect the encoded order.
4623 *) Reimplement the OCSP ASN1 module using the new code.
4626 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4627 for its ASN1 operations. The old style function pointers still exist
4628 for now but they will eventually go away.
4631 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4632 completely replaces the old ASN1 functionality with a table driven
4633 encoder and decoder which interprets an ASN1_ITEM structure describing
4634 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4635 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4636 has also been converted to the new form.
4639 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4640 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4641 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4642 for negative moduli.
4645 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4646 of not touching the result's sign bit.
4649 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4653 *) Changed the LHASH code to use prototypes for callbacks, and created
4654 macros to declare and implement thin (optionally static) functions
4655 that provide type-safety and avoid function pointer casting for the
4656 type-specific callbacks.
4659 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4661 [Veers Staats <staatsvr@asc.hpc.mil>,
4662 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4664 *) Reformat the FAQ so the different questions and answers can be divided
4665 in sections depending on the subject.
4668 *) Have the zlib compression code load ZLIB.DLL dynamically under
4672 *) New function BN_mod_sqrt for computing square roots modulo a prime
4673 (using the probabilistic Tonelli-Shanks algorithm unless
4674 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4675 be handled deterministically).
4676 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4678 *) Make BN_mod_inverse faster by explicitly handling small quotients
4679 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4680 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4683 *) New function BN_kronecker.
4686 *) Fix BN_gcd so that it works on negative inputs; the result is
4687 positive unless both parameters are zero.
4688 Previously something reasonably close to an infinite loop was
4689 possible because numbers could be growing instead of shrinking
4690 in the implementation of Euclid's algorithm.
4693 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4694 sign of the number in question.
4696 Fix BN_is_word(a,w) to work correctly for w == 0.
4698 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4699 because its test if the absolute value of 'a' equals 'w'.
4700 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4701 it exists mostly for use in the implementations of BN_is_zero(),
4702 BN_is_one(), and BN_is_word().
4705 *) New function BN_swap.
4708 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4709 the exponentiation functions are more likely to produce reasonable
4710 results on negative inputs.
4713 *) Change BN_mod_mul so that the result is always non-negative.
4714 Previously, it could be negative if one of the factors was negative;
4715 I don't think anyone really wanted that behaviour.
4718 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4719 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4720 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4721 and add new functions:
4730 BN_mod_lshift1_quick
4734 These functions always generate non-negative results.
4736 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4737 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4739 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4740 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4741 be reduced modulo m.
4742 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4745 The following entry accidentily appeared in the CHANGES file
4746 distributed with OpenSSL 0.9.7. The modifications described in
4747 it do *not* apply to OpenSSL 0.9.7.
4749 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4750 was actually never needed) and in BN_mul(). The removal in BN_mul()
4751 required a small change in bn_mul_part_recursive() and the addition
4752 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4753 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4754 bn_sub_words() and bn_add_words() except they take arrays with
4759 *) In 'openssl passwd', verify passwords read from the terminal
4760 unless the '-salt' option is used (which usually means that
4761 verification would just waste user's time since the resulting
4762 hash is going to be compared with some given password hash)
4763 or the new '-noverify' option is used.
4765 This is an incompatible change, but it does not affect
4766 non-interactive use of 'openssl passwd' (passwords on the command
4767 line, '-stdin' option, '-in ...' option) and thus should not
4771 *) Remove all references to RSAref, since there's no more need for it.
4774 *) Make DSO load along a path given through an environment variable
4775 (SHLIB_PATH) with shl_load().
4778 *) Constify the ENGINE code as a result of BIGNUM constification.
4779 Also constify the RSA code and most things related to it. In a
4780 few places, most notable in the depth of the ASN.1 code, ugly
4781 casts back to non-const were required (to be solved at a later
4785 *) Make it so the openssl application has all engines loaded by default.
4788 *) Constify the BIGNUM routines a little more.
4791 *) Add the following functions:
4793 ENGINE_load_cswift()
4795 ENGINE_load_atalla()
4797 ENGINE_load_builtin_engines()
4799 That way, an application can itself choose if external engines that
4800 are built-in in OpenSSL shall ever be used or not. The benefit is
4801 that applications won't have to be linked with libdl or other dso
4802 libraries unless it's really needed.
4804 Changed 'openssl engine' to load all engines on demand.
4805 Changed the engine header files to avoid the duplication of some
4806 declarations (they differed!).
4809 *) 'openssl engine' can now list capabilities.
4812 *) Better error reporting in 'openssl engine'.
4815 *) Never call load_dh_param(NULL) in s_server.
4818 *) Add engine application. It can currently list engines by name and
4819 identity, and test if they are actually available.
4822 *) Improve RPM specification file by forcing symbolic linking and making
4823 sure the installed documentation is also owned by root.root.
4824 [Damien Miller <djm@mindrot.org>]
4826 *) Give the OpenSSL applications more possibilities to make use of
4827 keys (public as well as private) handled by engines.
4830 *) Add OCSP code that comes from CertCo.
4833 *) Add VMS support for the Rijndael code.
4836 *) Added untested support for Nuron crypto accelerator.
4839 *) Add support for external cryptographic devices. This code was
4840 previously distributed separately as the "engine" branch.
4841 [Geoff Thorpe, Richard Levitte]
4843 *) Rework the filename-translation in the DSO code. It is now possible to
4844 have far greater control over how a "name" is turned into a filename
4845 depending on the operating environment and any oddities about the
4846 different shared library filenames on each system.
4849 *) Support threads on FreeBSD-elf in Configure.
4852 *) Fix for SHA1 assembly problem with MASM: it produces
4853 warnings about corrupt line number information when assembling
4854 with debugging information. This is caused by the overlapping
4856 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4859 NCONF_get_number() has no error checking at all. As a replacement,
4860 NCONF_get_number_e() is defined (_e for "error checking") and is
4861 promoted strongly. The old NCONF_get_number is kept around for
4862 binary backward compatibility.
4863 Make it possible for methods to load from something other than a BIO,
4864 by providing a function pointer that is given a name instead of a BIO.
4865 For example, this could be used to load configuration data from an
4869 *) Fix for non blocking accept BIOs. Added new I/O special reason
4870 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4871 with non blocking I/O was not possible because no retry code was
4872 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4876 *) Added the beginnings of Rijndael support.
4879 *) Fix for bug in DirectoryString mask setting. Add support for
4880 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4881 to allow certificate printing to more controllable, additional
4882 'certopt' option to 'x509' to allow new printing options to be
4886 *) Clean old EAY MD5 hack from e_os.h.
4889 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4891 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4892 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4893 [Joe Orton, Steve Henson]
4895 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4897 *) Fix additional bug revealed by the NISCC test suite:
4899 Stop bug triggering large recursion when presented with
4900 certain ASN.1 tags (CVE-2003-0851)
4903 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4905 *) Fix various bugs revealed by running the NISCC test suite:
4907 Stop out of bounds reads in the ASN1 code when presented with
4908 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4910 If verify callback ignores invalid public key errors don't try to check
4911 certificate signature with the NULL public key.
4915 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4916 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4920 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4921 extra data after the compression methods not only for TLS 1.0
4922 but also for SSL 3.0 (as required by the specification).
4923 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4925 *) Change X509_certificate_type() to mark the key as exported/exportable
4926 when it's 512 *bits* long, not 512 bytes.
4929 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4931 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4932 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4933 a protocol version number mismatch like a decryption error
4934 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4937 *) Turn on RSA blinding by default in the default implementation
4938 to avoid a timing attack. Applications that don't want it can call
4939 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4940 They would be ill-advised to do so in most cases.
4941 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4943 *) Change RSA blinding code so that it works when the PRNG is not
4944 seeded (in this case, the secret RSA exponent is abused as
4945 an unpredictable seed -- if it is not unpredictable, there
4946 is no point in blinding anyway). Make RSA blinding thread-safe
4947 by remembering the creator's thread ID in rsa->blinding and
4948 having all other threads use local one-time blinding factors
4949 (this requires more computation than sharing rsa->blinding, but
4950 avoids excessive locking; and if an RSA object is not shared
4951 between threads, blinding will still be very fast).
4954 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4956 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4957 via timing by performing a MAC computation even if incorrrect
4958 block cipher padding has been found. This is a countermeasure
4959 against active attacks where the attacker has to distinguish
4960 between bad padding and a MAC verification error. (CVE-2003-0078)
4962 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4963 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4964 Martin Vuagnoux (EPFL, Ilion)]
4966 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4968 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4969 memory from it's contents. This is done with a counter that will
4970 place alternating values in each byte. This can be used to solve
4971 two issues: 1) the removal of calls to memset() by highly optimizing
4972 compilers, and 2) cleansing with other values than 0, since those can
4973 be read through on certain media, for example a swap space on disk.
4976 *) Bugfix: client side session caching did not work with external caching,
4977 because the session->cipher setting was not restored when reloading
4978 from the external cache. This problem was masked, when
4979 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4980 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4983 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4984 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4985 [Zeev Lieber <zeev-l@yahoo.com>]
4987 *) Undo an undocumented change introduced in 0.9.6e which caused
4988 repeated calls to OpenSSL_add_all_ciphers() and
4989 OpenSSL_add_all_digests() to be ignored, even after calling
4993 *) Change the default configuration reader to deal with last line not
4994 being properly terminated.
4997 *) Change X509_NAME_cmp() so it applies the special rules on handling
4998 DN values that are of type PrintableString, as well as RDNs of type
4999 emailAddress where the value has the type ia5String.
5000 [stefank@valicert.com via Richard Levitte]
5002 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5003 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5004 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5005 the bitwise-OR of the two for use by the majority of applications
5006 wanting this behaviour, and update the docs. The documented
5007 behaviour and actual behaviour were inconsistent and had been
5008 changing anyway, so this is more a bug-fix than a behavioural
5010 [Geoff Thorpe, diagnosed by Nadav Har'El]
5012 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5013 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5016 *) Fix initialization code race conditions in
5017 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5018 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5019 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5020 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5021 ssl2_get_cipher_by_char(),
5022 ssl3_get_cipher_by_char().
5023 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5025 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5026 the cached sessions are flushed, as the remove_cb() might use ex_data
5027 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5028 (see [openssl.org #212]).
5029 [Geoff Thorpe, Lutz Jaenicke]
5031 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5032 length, instead of the encoding length to d2i_ASN1_OBJECT.
5035 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5037 *) [In 0.9.6g-engine release:]
5038 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5039 [Lynn Gazis <lgazis@rainbow.com>]
5041 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5043 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5044 and get fix the header length calculation.
5045 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5046 Alon Kantor <alonk@checkpoint.com> (and others),
5049 *) Use proper error handling instead of 'assertions' in buffer
5050 overflow checks added in 0.9.6e. This prevents DoS (the
5051 assertions could call abort()).
5052 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5054 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5056 *) Add various sanity checks to asn1_get_length() to reject
5057 the ASN1 length bytes if they exceed sizeof(long), will appear
5058 negative or the content length exceeds the length of the
5060 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5062 *) Fix cipher selection routines: ciphers without encryption had no flags
5063 for the cipher strength set and where therefore not handled correctly
5064 by the selection routines (PR #130).
5067 *) Fix EVP_dsa_sha macro.
5071 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5072 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5073 that was added in OpenSSL 0.9.6d.
5075 As the countermeasure turned out to be incompatible with some
5076 broken SSL implementations, the new option is part of SSL_OP_ALL.
5077 SSL_OP_ALL is usually employed when compatibility with weird SSL
5078 implementations is desired (e.g. '-bugs' option to 's_client' and
5079 's_server'), so the new option is automatically set in many
5083 *) Changes in security patch:
5085 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5086 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5087 Air Force Materiel Command, USAF, under agreement number
5090 *) Add various sanity checks to asn1_get_length() to reject
5091 the ASN1 length bytes if they exceed sizeof(long), will appear
5092 negative or the content length exceeds the length of the
5093 supplied buffer. (CVE-2002-0659)
5094 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5096 *) Assertions for various potential buffer overflows, not known to
5098 [Ben Laurie (CHATS)]
5100 *) Various temporary buffers to hold ASCII versions of integers were
5101 too small for 64 bit platforms. (CVE-2002-0655)
5102 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5104 *) Remote buffer overflow in SSL3 protocol - an attacker could
5105 supply an oversized session ID to a client. (CVE-2002-0656)
5106 [Ben Laurie (CHATS)]
5108 *) Remote buffer overflow in SSL2 protocol - an attacker could
5109 supply an oversized client master key. (CVE-2002-0656)
5110 [Ben Laurie (CHATS)]
5112 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5114 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5115 encoded as NULL) with id-dsa-with-sha1.
5116 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5118 *) Check various X509_...() return values in apps/req.c.
5119 [Nils Larsch <nla@trustcenter.de>]
5121 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5122 an end-of-file condition would erronously be flagged, when the CRLF
5123 was just at the end of a processed block. The bug was discovered when
5124 processing data through a buffering memory BIO handing the data to a
5125 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5126 <ptsekov@syntrex.com> and Nedelcho Stanev.
5129 *) Implement a countermeasure against a vulnerability recently found
5130 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5131 before application data chunks to avoid the use of known IVs
5132 with data potentially chosen by the attacker.
5135 *) Fix length checks in ssl3_get_client_hello().
5138 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5139 to prevent ssl3_read_internal() from incorrectly assuming that
5140 ssl3_read_bytes() found application data while handshake
5141 processing was enabled when in fact s->s3->in_read_app_data was
5142 merely automatically cleared during the initial handshake.
5143 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5145 *) Fix object definitions for Private and Enterprise: they were not
5146 recognized in their shortname (=lowercase) representation. Extend
5147 obj_dat.pl to issue an error when using undefined keywords instead
5148 of silently ignoring the problem (Svenning Sorensen
5149 <sss@sss.dnsalias.net>).
5152 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5153 generators, i.e. generators other than 2 and 5. (Previously, the
5154 code did not properly initialise the 'add' and 'rem' values to
5155 BN_generate_prime().)
5157 In the new general case, we do not insist that 'generator' is
5158 actually a primitive root: This requirement is rather pointless;
5159 a generator of the order-q subgroup is just as good, if not
5163 *) Map new X509 verification errors to alerts. Discovered and submitted by
5164 Tom Wu <tom@arcot.com>.
5167 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5168 returning non-zero before the data has been completely received
5169 when using non-blocking I/O.
5170 [Bodo Moeller; problem pointed out by John Hughes]
5172 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5173 [Ben Laurie, Lutz Jaenicke]
5175 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5176 Yoram Zahavi <YoramZ@gilian.com>).
5179 *) Add information about CygWin 1.3 and on, and preserve proper
5180 configuration for the versions before that.
5181 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5183 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5184 check whether we deal with a copy of a session and do not delete from
5185 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5186 <izhar@checkpoint.com>.
5189 *) Do not store session data into the internal session cache, if it
5190 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5191 flag is set). Proposed by Aslam <aslam@funk.com>.
5194 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5198 *) [In 0.9.6d-engine release:]
5199 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5200 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5202 *) Add the configuration target linux-s390x.
5203 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5205 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5206 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5207 variable as an indication that a ClientHello message has been
5208 received. As the flag value will be lost between multiple
5209 invocations of ssl3_accept when using non-blocking I/O, the
5210 function may not be aware that a handshake has actually taken
5211 place, thus preventing a new session from being added to the
5214 To avoid this problem, we now set s->new_session to 2 instead of
5215 using a local variable.
5216 [Lutz Jaenicke, Bodo Moeller]
5218 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5219 if the SSL_R_LENGTH_MISMATCH error is detected.
5220 [Geoff Thorpe, Bodo Moeller]
5222 *) New 'shared_ldflag' column in Configure platform table.
5225 *) Fix EVP_CIPHER_mode macro.
5226 ["Dan S. Camper" <dan@bti.net>]
5228 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5229 type, we must throw them away by setting rr->length to 0.
5230 [D P Chang <dpc@qualys.com>]
5232 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5234 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5235 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5236 worked incorrectly for those cases where range = 10..._2 and
5237 3*range is two bits longer than range.)
5240 *) Only add signing time to PKCS7 structures if it is not already
5244 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5245 OBJ_ld_ce should be OBJ_id_ce.
5246 Also some ip-pda OIDs in crypto/objects/objects.txt were
5247 incorrect (cf. RFC 3039).
5248 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5250 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5251 returns early because it has nothing to do.
5252 [Andy Schneider <andy.schneider@bjss.co.uk>]
5254 *) [In 0.9.6c-engine release:]
5255 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5256 [Andy Schneider <andy.schneider@bjss.co.uk>]
5258 *) [In 0.9.6c-engine release:]
5259 Add support for Cryptographic Appliance's keyserver technology.
5260 (Use engine 'keyclient')
5261 [Cryptographic Appliances and Geoff Thorpe]
5263 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5264 is called via tools/c89.sh because arguments have to be
5265 rearranged (all '-L' options must appear before the first object
5267 [Richard Shapiro <rshapiro@abinitio.com>]
5269 *) [In 0.9.6c-engine release:]
5270 Add support for Broadcom crypto accelerator cards, backported
5272 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5274 *) [In 0.9.6c-engine release:]
5275 Add support for SureWare crypto accelerator cards from
5276 Baltimore Technologies. (Use engine 'sureware')
5277 [Baltimore Technologies and Mark Cox]
5279 *) [In 0.9.6c-engine release:]
5280 Add support for crypto accelerator cards from Accelerated
5281 Encryption Processing, www.aep.ie. (Use engine 'aep')
5282 [AEP Inc. and Mark Cox]
5284 *) Add a configuration entry for gcc on UnixWare.
5285 [Gary Benson <gbenson@redhat.com>]
5287 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5288 messages are stored in a single piece (fixed-length part and
5289 variable-length part combined) and fix various bugs found on the way.
5292 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5293 instead. BIO_gethostbyname() does not know what timeouts are
5294 appropriate, so entries would stay in cache even when they have
5296 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5298 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5299 faced with a pathologically small ClientHello fragment that does
5300 not contain client_version: Instead of aborting with an error,
5301 simply choose the highest available protocol version (i.e.,
5302 TLS 1.0 unless it is disabled). In practice, ClientHello
5303 messages are never sent like this, but this change gives us
5304 strictly correct behaviour at least for TLS.
5307 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5308 never resets s->method to s->ctx->method when called from within
5309 one of the SSL handshake functions.
5310 [Bodo Moeller; problem pointed out by Niko Baric]
5312 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5313 (sent using the client's version number) if client_version is
5314 smaller than the protocol version in use. Also change
5315 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5316 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5317 the client will at least see that alert.
5320 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5324 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5325 client receives HelloRequest while in a handshake.
5326 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5328 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5329 should end in 'break', not 'goto end' which circuments various
5330 cleanups done in state SSL_ST_OK. But session related stuff
5331 must be disabled for SSL_ST_OK in the case that we just sent a
5334 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5335 before just sending a HelloRequest.
5336 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5338 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5339 reveal whether illegal block cipher padding was found or a MAC
5340 verification error occured. (Neither SSLerr() codes nor alerts
5341 are directly visible to potential attackers, but the information
5342 may leak via logfiles.)
5344 Similar changes are not required for the SSL 2.0 implementation
5345 because the number of padding bytes is sent in clear for SSL 2.0,
5346 and the extra bytes are just ignored. However ssl/s2_pkt.c
5347 failed to verify that the purported number of padding bytes is in
5351 *) Add OpenUNIX-8 support including shared libraries
5352 (Boyd Lynn Gerber <gerberb@zenez.com>).
5355 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5356 'wristwatch attack' using huge encoding parameters (cf.
5357 James H. Manger's CRYPTO 2001 paper). Note that the
5358 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5359 encoding parameters and hence was not vulnerable.
5362 *) BN_sqr() bug fix.
5363 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5365 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5366 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5367 followed by modular reduction.
5368 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5370 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5371 equivalent based on BN_pseudo_rand() instead of BN_rand().
5374 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5375 This function was broken, as the check for a new client hello message
5376 to handle SGC did not allow these large messages.
5377 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5380 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5383 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5384 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5387 *) Rework the configuration and shared library support for Tru64 Unix.
5388 The configuration part makes use of modern compiler features and
5389 still retains old compiler behavior for those that run older versions
5390 of the OS. The shared library support part includes a variant that
5391 uses the RPATH feature, and is available through the special
5392 configuration target "alpha-cc-rpath", which will never be selected
5394 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5396 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5397 with the same message size as in ssl3_get_certificate_request().
5398 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5399 messages might inadvertently be reject as too long.
5400 [Petr Lampa <lampa@fee.vutbr.cz>]
5402 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5405 *) Modified SSL library such that the verify_callback that has been set
5406 specificly for an SSL object with SSL_set_verify() is actually being
5407 used. Before the change, a verify_callback set with this function was
5408 ignored and the verify_callback() set in the SSL_CTX at the time of
5409 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5410 to allow the necessary settings.
5413 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5414 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5415 done automatically (in contradiction to the requirements of the C
5416 standard). This made problems when used from OpenSSH.
5419 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5420 dh->length and always used
5422 BN_rand_range(priv_key, dh->p).
5424 BN_rand_range() is not necessary for Diffie-Hellman, and this
5425 specific range makes Diffie-Hellman unnecessarily inefficient if
5426 dh->length (recommended exponent length) is much smaller than the
5427 length of dh->p. We could use BN_rand_range() if the order of
5428 the subgroup was stored in the DH structure, but we only have
5433 BN_rand(priv_key, l, ...)
5435 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5441 RSA_eay_public_encrypt
5442 RSA_eay_private_decrypt
5443 RSA_eay_private_encrypt (signing)
5444 RSA_eay_public_decrypt (signature verification)
5446 (default implementations for RSA_public_encrypt,
5447 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5448 always reject numbers >= n.
5451 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5452 to synchronize access to 'locking_thread'. This is necessary on
5453 systems where access to 'locking_thread' (an 'unsigned long'
5454 variable) is not atomic.
5457 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5458 *before* setting the 'crypto_lock_rand' flag. The previous code had
5459 a race condition if 0 is a valid thread ID.
5460 [Travis Vitek <vitek@roguewave.com>]
5462 *) Add support for shared libraries under Irix.
5463 [Albert Chin-A-Young <china@thewrittenword.com>]
5465 *) Add configuration option to build on Linux on both big-endian and
5467 [Ralf Baechle <ralf@uni-koblenz.de>]
5469 *) Add the possibility to create shared libraries on HP-UX.
5472 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5474 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5475 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5476 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5477 PRNG state recovery was possible based on the output of
5478 one PRNG request appropriately sized to gain knowledge on
5479 'md' followed by enough consecutive 1-byte PRNG requests
5480 to traverse all of 'state'.
5482 1. When updating 'md_local' (the current thread's copy of 'md')
5483 during PRNG output generation, hash all of the previous
5484 'md_local' value, not just the half used for PRNG output.
5486 2. Make the number of bytes from 'state' included into the hash
5487 independent from the number of PRNG bytes requested.
5489 The first measure alone would be sufficient to avoid
5490 Markku-Juhani's attack. (Actually it had never occurred
5491 to me that the half of 'md_local' used for chaining was the
5492 half from which PRNG output bytes were taken -- I had always
5493 assumed that the secret half would be used.) The second
5494 measure makes sure that additional data from 'state' is never
5495 mixed into 'md_local' in small portions; this heuristically
5496 further strengthens the PRNG.
5499 *) Fix crypto/bn/asm/mips3.s.
5502 *) When only the key is given to "enc", the IV is undefined. Print out
5503 an error message in this case.
5506 *) Handle special case when X509_NAME is empty in X509 printing routines.
5509 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5510 positive and less than q.
5513 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5514 used: it isn't thread safe and the add_lock_callback should handle
5516 [Paul Rose <Paul.Rose@bridge.com>]
5518 *) Verify that incoming data obeys the block size in
5519 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5523 [Ulf Möller, Bodo Möller]
5525 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5526 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5527 when fixing the server behaviour for backwards-compatible 'client
5528 hello' messages. (Note that the attack is impractical against
5529 SSL 3.0 and TLS 1.0 anyway because length and version checking
5530 means that the probability of guessing a valid ciphertext is
5531 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5534 Before 0.9.5, the countermeasure (hide the error by generating a
5535 random 'decryption result') did not work properly because
5536 ERR_clear_error() was missing, meaning that SSL_get_error() would
5537 detect the supposedly ignored error.
5539 Both problems are now fixed.
5542 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5543 (previously it was 1024).
5546 *) Fix for compatibility mode trust settings: ignore trust settings
5547 unless some valid trust or reject settings are present.
5550 *) Fix for blowfish EVP: its a variable length cipher.
5553 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5554 parameters in DSA public key structures and return an error in the
5555 DSA routines if parameters are absent.
5558 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5559 in the current directory if neither $RANDFILE nor $HOME was set.
5560 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5561 caused some confusion to Windows users who haven't defined $HOME.
5562 Thus RAND_file_name() is changed again: e_os.h can define a
5563 DEFAULT_HOME, which will be used if $HOME is not set.
5564 For Windows, we use "C:"; on other platforms, we still require
5565 environment variables.
5567 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5568 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5569 having multiple threads call RAND_poll() concurrently.
5572 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5573 combination of a flag and a thread ID variable.
5574 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5575 flag), *other* threads can enter ssleay_add_bytes without obeying
5576 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5577 that they do not hold after the first thread unsets add_do_not_lock).
5580 *) Change bctest again: '-x' expressions are not available in all
5584 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5586 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5587 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5589 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5590 the default extension for executables, if any. Also, make the perl
5591 scripts that use symlink() to test if it really exists and use "cp"
5592 if it doesn't. All this made OpenSSL compilable and installable in
5596 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5597 If SEQUENCE is length is indefinite just set c->slen to the total
5598 amount of data available.
5599 [Steve Henson, reported by shige@FreeBSD.org]
5600 [This change does not apply to 0.9.7.]
5602 *) Change bctest to avoid here-documents inside command substitution
5603 (workaround for FreeBSD /bin/sh bug).
5604 For compatibility with Ultrix, avoid shell functions (introduced
5605 in the bctest version that searches along $PATH).
5608 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5609 with des_encrypt() defined on some operating systems, like Solaris
5613 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5614 On the Importance of Eliminating Errors in Cryptographic
5615 Computations, J. Cryptology 14 (2001) 2, 101-119,
5616 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5619 *) MIPS assembler BIGNUM division bug fix.
5622 *) Disabled incorrect Alpha assembler code.
5625 *) Fix PKCS#7 decode routines so they correctly update the length
5626 after reading an EOC for the EXPLICIT tag.
5628 [This change does not apply to 0.9.7.]
5630 *) Fix bug in PKCS#12 key generation routines. This was triggered
5631 if a 3DES key was generated with a 0 initial byte. Include
5632 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5633 (but broken) behaviour.
5636 *) Enhance bctest to search for a working bc along $PATH and print
5638 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5640 *) Fix memory leaks in err.c: free err_data string if necessary;
5641 don't write to the wrong index in ERR_set_error_data.
5644 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5648 *) Replace rdtsc with _emit statements for VC++ version 5.
5649 [Jeremy Cooper <jeremy@baymoo.org>]
5651 *) Make it possible to reuse SSLv2 sessions.
5654 *) In copy_email() check for >= 0 as a return value for
5655 X509_NAME_get_index_by_NID() since 0 is a valid index.
5656 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5658 *) Avoid coredump with unsupported or invalid public keys by checking if
5659 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5660 PKCS7_verify() fails with non detached data.
5663 *) Don't use getenv in library functions when run as setuid/setgid.
5664 New function OPENSSL_issetugid().
5667 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5668 due to incorrect handling of multi-threading:
5670 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5672 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5674 3. Count how many times MemCheck_off() has been called so that
5675 nested use can be treated correctly. This also avoids
5676 inband-signalling in the previous code (which relied on the
5677 assumption that thread ID 0 is impossible).
5680 *) Add "-rand" option also to s_client and s_server.
5683 *) Fix CPU detection on Irix 6.x.
5684 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5685 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5687 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5690 [This change does not apply to 0.9.7.]
5692 *) Use the cached encoding of an X509_NAME structure rather than
5693 copying it. This is apparently the reason for the libsafe "errors"
5694 but the code is actually correct.
5697 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5698 Bleichenbacher's DSA attack.
5699 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5700 to be set and top=0 forces the highest bit to be set; top=-1 is new
5701 and leaves the highest bit random.
5702 [Ulf Moeller, Bodo Moeller]
5704 *) In the NCONF_...-based implementations for CONF_... queries
5705 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5706 a temporary CONF structure with the data component set to NULL
5707 (which gives segmentation faults in lh_retrieve).
5708 Instead, use NULL for the CONF pointer in CONF_get_string and
5709 CONF_get_number (which may use environment variables) and directly
5710 return NULL from CONF_get_section.
5713 *) Fix potential buffer overrun for EBCDIC.
5716 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5717 keyUsage if basicConstraints absent for a CA.
5720 *) Make SMIME_write_PKCS7() write mail header values with a format that
5721 is more generally accepted (no spaces before the semicolon), since
5722 some programs can't parse those values properly otherwise. Also make
5723 sure BIO's that break lines after each write do not create invalid
5727 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5728 macros previously used would not encode an empty SEQUENCE OF
5729 and break the signature.
5731 [This change does not apply to 0.9.7.]
5733 *) Zero the premaster secret after deriving the master secret in
5737 *) Add some EVP_add_digest_alias registrations (as found in
5738 OpenSSL_add_all_digests()) to SSL_library_init()
5739 aka OpenSSL_add_ssl_algorithms(). This provides improved
5740 compatibility with peers using X.509 certificates
5741 with unconventional AlgorithmIdentifier OIDs.
5744 *) Fix for Irix with NO_ASM.
5745 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5747 *) ./config script fixes.
5748 [Ulf Moeller, Richard Levitte]
5750 *) Fix 'openssl passwd -1'.
5753 *) Change PKCS12_key_gen_asc() so it can cope with non null
5754 terminated strings whose length is passed in the passlen
5755 parameter, for example from PEM callbacks. This was done
5756 by adding an extra length parameter to asc2uni().
5757 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5759 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5760 call failed, free the DSA structure.
5763 *) Fix to uni2asc() to cope with zero length Unicode strings.
5764 These are present in some PKCS#12 files.
5767 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5768 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5769 when writing a 32767 byte record.
5770 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5772 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5773 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5775 (RSA objects have a reference count access to which is protected
5776 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5777 so they are meant to be shared between threads.)
5778 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5779 "Reddie, Steven" <Steven.Reddie@ca.com>]
5781 *) Fix a deadlock in CRYPTO_mem_leaks().
5784 *) Use better test patterns in bntest.
5787 *) rand_win.c fix for Borland C.
5790 *) BN_rshift bugfix for n == 0.
5793 *) Add a 'bctest' script that checks for some known 'bc' bugs
5794 so that 'make test' does not abort just because 'bc' is broken.
5797 *) Store verify_result within SSL_SESSION also for client side to
5798 avoid potential security hole. (Re-used sessions on the client side
5799 always resulted in verify_result==X509_V_OK, not using the original
5800 result of the server certificate verification.)
5803 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5804 SSL3_RT_APPLICATION_DATA, return 0.
5805 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5809 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5810 releases, have been re-implemented by renaming the previous
5811 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5812 and ssl3_read_internal, respectively, and adding 'peek' parameters
5813 to them. The new ssl[23]_{read,peek} functions are calls to
5814 ssl[23]_read_internal with the 'peek' flag set appropriately.
5815 A 'peek' parameter has also been added to ssl3_read_bytes, which
5816 does the actual work for ssl3_read_internal.
5819 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5820 the method-specific "init()" handler. Also clean up ex_data after
5821 calling the method-specific "finish()" handler. Previously, this was
5822 happening the other way round.
5825 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5826 The previous value, 12, was not always sufficient for BN_mod_exp().
5829 *) Make sure that shared libraries get the internal name engine with
5830 the full version number and not just 0. This should mark the
5831 shared libraries as not backward compatible. Of course, this should
5832 be changed again when we can guarantee backward binary compatibility.
5835 *) Fix typo in get_cert_by_subject() in by_dir.c
5836 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5838 *) Rework the system to generate shared libraries:
5840 - Make note of the expected extension for the shared libraries and
5841 if there is a need for symbolic links from for example libcrypto.so.0
5842 to libcrypto.so.0.9.7. There is extended info in Configure for
5845 - Make as few rebuilds of the shared libraries as possible.
5847 - Still avoid linking the OpenSSL programs with the shared libraries.
5849 - When installing, install the shared libraries separately from the
5853 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5855 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5856 and not in SSL_clear because the latter is also used by the
5857 accept/connect functions; previously, the settings made by
5858 SSL_set_read_ahead would be lost during the handshake.
5859 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5861 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5862 Previously, it would create entries for disableed algorithms no
5866 *) Added several new manual pages for SSL_* function.
5869 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5871 *) In ssl23_get_client_hello, generate an error message when faced
5872 with an initial SSL 3.0/TLS record that is too small to contain the
5873 first two bytes of the ClientHello message, i.e. client_version.
5874 (Note that this is a pathologic case that probably has never happened
5875 in real life.) The previous approach was to use the version number
5876 from the record header as a substitute; but our protocol choice
5877 should not depend on that one because it is not authenticated
5878 by the Finished messages.
5881 *) More robust randomness gathering functions for Windows.
5882 [Jeffrey Altman <jaltman@columbia.edu>]
5884 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5885 not set then we don't setup the error code for issuer check errors
5886 to avoid possibly overwriting other errors which the callback does
5887 handle. If an application does set the flag then we assume it knows
5888 what it is doing and can handle the new informational codes
5892 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5893 a general "ANY" type, as such it should be able to decode anything
5894 including tagged types. However it didn't check the class so it would
5895 wrongly interpret tagged types in the same way as their universal
5896 counterpart and unknown types were just rejected. Changed so that the
5897 tagged and unknown types are handled in the same way as a SEQUENCE:
5898 that is the encoding is stored intact. There is also a new type
5899 "V_ASN1_OTHER" which is used when the class is not universal, in this
5900 case we have no idea what the actual type is so we just lump them all
5904 *) On VMS, stdout may very well lead to a file that is written to
5905 in a record-oriented fashion. That means that every write() will
5906 write a separate record, which will be read separately by the
5907 programs trying to read from it. This can be very confusing.
5909 The solution is to put a BIO filter in the way that will buffer
5910 text until a linefeed is reached, and then write everything a
5911 line at a time, so every record written will be an actual line,
5912 not chunks of lines and not (usually doesn't happen, but I've
5913 seen it once) several lines in one record. BIO_f_linebuffer() is
5916 Currently, it's a VMS-only method, because that's where it has
5917 been tested well enough.
5920 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5921 it can return incorrect results.
5922 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5923 but it was in 0.9.6-beta[12].)
5926 *) Disable the check for content being present when verifying detached
5927 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5928 include zero length content when signing messages.
5931 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5932 BIO_ctrl (for BIO pairs).
5935 *) Add DSO method for VMS.
5938 *) Bug fix: Montgomery multiplication could produce results with the
5942 *) Add RPM specification openssl.spec and modify it to build three
5943 packages. The default package contains applications, application
5944 documentation and run-time libraries. The devel package contains
5945 include files, static libraries and function documentation. The
5946 doc package contains the contents of the doc directory. The original
5947 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5950 *) Add a large number of documentation files for many SSL routines.
5951 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5953 *) Add a configuration entry for Sony News 4.
5954 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5956 *) Don't set the two most significant bits to one when generating a
5957 random number < q in the DSA library.
5960 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5961 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5962 the underlying transport is blocking) if a handshake took place.
5963 (The default behaviour is needed by applications such as s_client
5964 and s_server that use select() to determine when to use SSL_read;
5965 but for applications that know in advance when to expect data, it
5966 just makes things more complicated.)
5969 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5973 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5974 work better on such systems.
5975 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5977 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5978 Update PKCS12_parse() so it copies the friendlyName and the
5979 keyid to the certificates aux info.
5982 *) Fix bug in PKCS7_verify() which caused an infinite loop
5983 if there was more than one signature.
5984 [Sven Uszpelkat <su@celocom.de>]
5986 *) Major change in util/mkdef.pl to include extra information
5987 about each symbol, as well as presentig variables as well
5988 as functions. This change means that there's n more need
5989 to rebuild the .num files when some algorithms are excluded.
5992 *) Allow the verify time to be set by an application,
5993 rather than always using the current time.
5996 *) Phase 2 verify code reorganisation. The certificate
5997 verify code now looks up an issuer certificate by a
5998 number of criteria: subject name, authority key id
5999 and key usage. It also verifies self signed certificates
6000 by the same criteria. The main comparison function is
6001 X509_check_issued() which performs these checks.
6003 Lot of changes were necessary in order to support this
6004 without completely rewriting the lookup code.
6006 Authority and subject key identifier are now cached.
6008 The LHASH 'certs' is X509_STORE has now been replaced
6009 by a STACK_OF(X509_OBJECT). This is mainly because an
6010 LHASH can't store or retrieve multiple objects with
6011 the same hash value.
6013 As a result various functions (which were all internal
6014 use only) have changed to handle the new X509_STORE
6015 structure. This will break anything that messed round
6016 with X509_STORE internally.
6018 The functions X509_STORE_add_cert() now checks for an
6019 exact match, rather than just subject name.
6021 The X509_STORE API doesn't directly support the retrieval
6022 of multiple certificates matching a given criteria, however
6023 this can be worked round by performing a lookup first
6024 (which will fill the cache with candidate certificates)
6025 and then examining the cache for matches. This is probably
6026 the best we can do without throwing out X509_LOOKUP
6027 entirely (maybe later...).
6029 The X509_VERIFY_CTX structure has been enhanced considerably.
6031 All certificate lookup operations now go via a get_issuer()
6032 callback. Although this currently uses an X509_STORE it
6033 can be replaced by custom lookups. This is a simple way
6034 to bypass the X509_STORE hackery necessary to make this
6035 work and makes it possible to use more efficient techniques
6036 in future. A very simple version which uses a simple
6037 STACK for its trusted certificate store is also provided
6038 using X509_STORE_CTX_trusted_stack().
6040 The verify_cb() and verify() callbacks now have equivalents
6041 in the X509_STORE_CTX structure.
6043 X509_STORE_CTX also has a 'flags' field which can be used
6044 to customise the verify behaviour.
6047 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6048 excludes S/MIME capabilities.
6051 *) When a certificate request is read in keep a copy of the
6052 original encoding of the signed data and use it when outputing
6053 again. Signatures then use the original encoding rather than
6054 a decoded, encoded version which may cause problems if the
6055 request is improperly encoded.
6058 *) For consistency with other BIO_puts implementations, call
6059 buffer_write(b, ...) directly in buffer_puts instead of calling
6062 In BIO_puts, increment b->num_write as in BIO_write.
6063 [Peter.Sylvester@EdelWeb.fr]
6065 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6066 BN_zero, we may not return a BIGNUM with an array consisting of
6070 *) Avoid calling abort() from within the library when problems are
6071 detected, except if preprocessor symbols have been defined
6072 (such as REF_CHECK, BN_DEBUG etc.).
6075 *) New openssl application 'rsautl'. This utility can be
6076 used for low level RSA operations. DER public key
6077 BIO/fp routines also added.
6080 *) New Configure entry and patches for compiling on QNX 4.
6081 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6083 *) A demo state-machine implementation was sponsored by
6084 Nuron (http://www.nuron.com/) and is now available in
6085 demos/state_machine.
6088 *) New options added to the 'dgst' utility for signature
6089 generation and verification.
6092 *) Unrecognized PKCS#7 content types are now handled via a
6093 catch all ASN1_TYPE structure. This allows unsupported
6094 types to be stored as a "blob" and an application can
6095 encode and decode it manually.
6098 *) Fix various signed/unsigned issues to make a_strex.c
6100 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6102 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6103 length if passed a buffer. ASN1_INTEGER_to_BN failed
6104 if passed a NULL BN and its argument was negative.
6105 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6107 *) Modification to PKCS#7 encoding routines to output definite
6108 length encoding. Since currently the whole structures are in
6109 memory there's not real point in using indefinite length
6110 constructed encoding. However if OpenSSL is compiled with
6111 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6114 *) Added BIO_vprintf() and BIO_vsnprintf().
6117 *) Added more prefixes to parse for in the the strings written
6118 through a logging bio, to cover all the levels that are available
6119 through syslog. The prefixes are now:
6121 PANIC, EMERG, EMR => LOG_EMERG
6122 ALERT, ALR => LOG_ALERT
6123 CRIT, CRI => LOG_CRIT
6124 ERROR, ERR => LOG_ERR
6125 WARNING, WARN, WAR => LOG_WARNING
6126 NOTICE, NOTE, NOT => LOG_NOTICE
6127 INFO, INF => LOG_INFO
6128 DEBUG, DBG => LOG_DEBUG
6130 and as before, if none of those prefixes are present at the
6131 beginning of the string, LOG_ERR is chosen.
6133 On Win32, the LOG_* levels are mapped according to this:
6135 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6136 LOG_WARNING => EVENTLOG_WARNING_TYPE
6137 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6141 *) Made it possible to reconfigure with just the configuration
6142 argument "reconf" or "reconfigure". The command line arguments
6143 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6144 and are retrieved from there when reconfiguring.
6148 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6150 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6153 *) The obj_dat.pl script was messing up the sorting of object
6154 names. The reason was that it compared the quoted version
6155 of strings as a result "OCSP" > "OCSP Signing" because
6156 " > SPACE. Changed script to store unquoted versions of
6157 names and add quotes on output. It was also omitting some
6158 names from the lookup table if they were given a default
6159 value (that is if SN is missing it is given the same
6160 value as LN and vice versa), these are now added on the
6161 grounds that if an object has a name we should be able to
6162 look it up. Finally added warning output when duplicate
6163 short or long names are found.
6166 *) Changes needed for Tandem NSK.
6167 [Scott Uroff <scott@xypro.com>]
6169 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6170 RSA_padding_check_SSLv23(), special padding was never detected
6171 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6172 version rollback attacks was not effective.
6174 In s23_clnt.c, don't use special rollback-attack detection padding
6175 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6176 client; similarly, in s23_srvr.c, don't do the rollback check if
6177 SSL 2.0 is the only protocol enabled in the server.
6180 *) Make it possible to get hexdumps of unprintable data with 'openssl
6181 asn1parse'. By implication, the functions ASN1_parse_dump() and
6182 BIO_dump_indent() are added.
6185 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6186 these print out strings and name structures based on various
6187 flags including RFC2253 support and proper handling of
6188 multibyte characters. Added options to the 'x509' utility
6189 to allow the various flags to be set.
6192 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6193 Also change the functions X509_cmp_current_time() and
6194 X509_gmtime_adj() work with an ASN1_TIME structure,
6195 this will enable certificates using GeneralizedTime in validity
6196 dates to be checked.
6199 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6200 negative public key encodings) on by default,
6201 NO_NEG_PUBKEY_BUG can be set to disable it.
6204 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6205 content octets. An i2c_ASN1_OBJECT is unnecessary because
6206 the encoding can be trivially obtained from the structure.
6209 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6210 not read locks (CRYPTO_r_[un]lock).
6213 *) A first attempt at creating official support for shared
6214 libraries through configuration. I've kept it so the
6215 default is static libraries only, and the OpenSSL programs
6216 are always statically linked for now, but there are
6217 preparations for dynamic linking in place.
6218 This has been tested on Linux and Tru64.
6221 *) Randomness polling function for Win9x, as described in:
6222 Peter Gutmann, Software Generation of Practically Strong
6226 *) Fix so PRNG is seeded in req if using an already existing
6230 *) New options to smime application. -inform and -outform
6231 allow alternative formats for the S/MIME message including
6232 PEM and DER. The -content option allows the content to be
6233 specified separately. This should allow things like Netscape
6234 form signing output easier to verify.
6237 *) Fix the ASN1 encoding of tags using the 'long form'.
6240 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6241 STRING types. These convert content octets to and from the
6242 underlying type. The actual tag and length octets are
6243 already assumed to have been read in and checked. These
6244 are needed because all other string types have virtually
6245 identical handling apart from the tag. By having versions
6246 of the ASN1 functions that just operate on content octets
6247 IMPLICIT tagging can be handled properly. It also allows
6248 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6249 and ASN1_INTEGER are identical apart from the tag.
6252 *) Change the handling of OID objects as follows:
6254 - New object identifiers are inserted in objects.txt, following
6255 the syntax given in objects.README.
6256 - objects.pl is used to process obj_mac.num and create a new
6258 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6261 This is currently kind of a hack, and the perl code in objects.pl
6262 isn't very elegant, but it works as I intended. The simplest way
6263 to check that it worked correctly is to look in obj_dat.h and
6264 check the array nid_objs and make sure the objects haven't moved
6265 around (this is important!). Additions are OK, as well as
6266 consistent name changes.
6269 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6272 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6273 The given file adds to whatever has already been seeded into the
6274 random pool through the RANDFILE configuration file option or
6275 environment variable, or the default random state file.
6278 *) mkstack.pl now sorts each macro group into lexical order.
6279 Previously the output order depended on the order the files
6280 appeared in the directory, resulting in needless rewriting
6284 *) Patches to make OpenSSL compile under Win32 again. Mostly
6285 work arounds for the VC++ problem that it treats func() as
6286 func(void). Also stripped out the parts of mkdef.pl that
6287 added extra typesafe functions: these no longer exist.
6290 *) Reorganisation of the stack code. The macros are now all
6291 collected in safestack.h . Each macro is defined in terms of
6292 a "stack macro" of the form SKM_<name>(type, a, b). The
6293 DEBUG_SAFESTACK is now handled in terms of function casts,
6294 this has the advantage of retaining type safety without the
6295 use of additional functions. If DEBUG_SAFESTACK is not defined
6296 then the non typesafe macros are used instead. Also modified the
6297 mkstack.pl script to handle the new form. Needs testing to see
6298 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6299 the default if no major problems. Similar behaviour for ASN1_SET_OF
6300 and PKCS12_STACK_OF.
6303 *) When some versions of IIS use the 'NET' form of private key the
6304 key derivation algorithm is different. Normally MD5(password) is
6305 used as a 128 bit RC4 key. In the modified case
6306 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6307 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6308 as the old Netscape_RSA functions except they have an additional
6309 'sgckey' parameter which uses the modified algorithm. Also added
6310 an -sgckey command line option to the rsa utility. Thanks to
6311 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6312 algorithm to openssl-dev.
6315 *) The evp_local.h macros were using 'c.##kname' which resulted in
6316 invalid expansion on some systems (SCO 5.0.5 for example).
6317 Corrected to 'c.kname'.
6318 [Phillip Porch <root@theporch.com>]
6320 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6321 a STACK of email addresses from a certificate or request, these look
6322 in the subject name and the subject alternative name extensions and
6323 omit any duplicate addresses.
6326 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6327 This makes DSA verification about 2 % faster.
6330 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6331 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6332 plus overhead for 1024 bit moduli).
6333 This makes exponentiations about 0.5 % faster for 1024 bit
6334 exponents (as measured by "openssl speed rsa2048").
6337 *) Rename memory handling macros to avoid conflicts with other
6339 Malloc => OPENSSL_malloc
6340 Malloc_locked => OPENSSL_malloc_locked
6341 Realloc => OPENSSL_realloc
6342 Free => OPENSSL_free
6345 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6346 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6349 *) CygWin32 support.
6350 [John Jarvie <jjarvie@newsguy.com>]
6352 *) The type-safe stack code has been rejigged. It is now only compiled
6353 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6354 by default all type-specific stack functions are "#define"d back to
6355 standard stack functions. This results in more streamlined output
6356 but retains the type-safety checking possibilities of the original
6360 *) The STACK code has been cleaned up, and certain type declarations
6361 that didn't make a lot of sense have been brought in line. This has
6362 also involved a cleanup of sorts in safestack.h to more correctly
6363 map type-safe stack functions onto their plain stack counterparts.
6364 This work has also resulted in a variety of "const"ifications of
6365 lots of the code, especially "_cmp" operations which should normally
6366 be prototyped with "const" parameters anyway.
6369 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6370 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6371 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6372 where all of 'md' is used each time the PRNG is used, but 'state'
6373 is used only indexed by a cyclic counter. As entropy may not be
6374 well distributed from the beginning, 'md' is important as a
6375 chaining variable. However, the output function chains only half
6376 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6377 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6378 in all of 'state' being rewritten, with the new values depending
6379 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6382 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6383 the handshake is continued after ssl_verify_cert_chain();
6384 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6385 can lead to 'unexplainable' connection aborts later.
6386 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6388 *) Major EVP API cipher revision.
6389 Add hooks for extra EVP features. This allows various cipher
6390 parameters to be set in the EVP interface. Support added for variable
6391 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6392 setting of RC2 and RC5 parameters.
6394 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6397 Remove lots of duplicated code from the EVP library. For example *every*
6398 cipher init() function handles the 'iv' in the same way according to the
6399 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6400 for CFB and OFB modes they zero ctx->num.
6402 New functionality allows removal of S/MIME code RC2 hack.
6404 Most of the routines have the same form and so can be declared in terms
6407 By shifting this to the top level EVP_CipherInit() it can be removed from
6408 all individual ciphers. If the cipher wants to handle IVs or keys
6409 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6412 Change lots of functions like EVP_EncryptUpdate() to now return a
6413 value: although software versions of the algorithms cannot fail
6414 any installed hardware versions can.
6417 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6418 this option is set, tolerate broken clients that send the negotiated
6419 protocol version number instead of the requested protocol version
6423 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6424 i.e. non-zero for export ciphersuites, zero otherwise.
6425 Previous versions had this flag inverted, inconsistent with
6426 rsa_tmp_cb (..._TMP_RSA_CB).
6427 [Bodo Moeller; problem reported by Amit Chopra]
6429 *) Add missing DSA library text string. Work around for some IIS
6430 key files with invalid SEQUENCE encoding.
6433 *) Add a document (doc/standards.txt) that list all kinds of standards
6434 and so on that are implemented in OpenSSL.
6437 *) Enhance c_rehash script. Old version would mishandle certificates
6438 with the same subject name hash and wouldn't handle CRLs at all.
6439 Added -fingerprint option to crl utility, to support new c_rehash
6443 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6446 *) Fix for SSL server purpose checking. Server checking was
6447 rejecting certificates which had extended key usage present
6448 but no ssl client purpose.
6449 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6451 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6452 is a little unclear about how a blank password is handled.
6453 Since the password in encoded as a BMPString with terminating
6454 double NULL a zero length password would end up as just the
6455 double NULL. However no password at all is different and is
6456 handled differently in the PKCS#12 key generation code. NS
6457 treats a blank password as zero length. MSIE treats it as no
6458 password on export: but it will try both on import. We now do
6459 the same: PKCS12_parse() tries zero length and no password if
6460 the password is set to "" or NULL (NULL is now a valid password:
6461 it wasn't before) as does the pkcs12 application.
6464 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6465 perror when PEM_read_bio_X509_REQ fails, the error message must
6466 be obtained from the error queue.
6469 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6470 it in ERR_remove_state if appropriate, and change ERR_get_state
6471 accordingly to avoid race conditions (this is necessary because
6472 thread_hash is no longer constant once set).
6475 *) Bugfix for linux-elf makefile.one.
6478 *) RSA_get_default_method() will now cause a default
6479 RSA_METHOD to be chosen if one doesn't exist already.
6480 Previously this was only set during a call to RSA_new()
6481 or RSA_new_method(NULL) meaning it was possible for
6482 RSA_get_default_method() to return NULL.
6485 *) Added native name translation to the existing DSO code
6486 that will convert (if the flag to do so is set) filenames
6487 that are sufficiently small and have no path information
6488 into a canonical native form. Eg. "blah" converted to
6489 "libblah.so" or "blah.dll" etc.
6492 *) New function ERR_error_string_n(e, buf, len) which is like
6493 ERR_error_string(e, buf), but writes at most 'len' bytes
6494 including the 0 terminator. For ERR_error_string_n, 'buf'
6496 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6498 *) CONF library reworked to become more general. A new CONF
6499 configuration file reader "class" is implemented as well as a
6500 new functions (NCONF_*, for "New CONF") to handle it. The now
6501 old CONF_* functions are still there, but are reimplemented to
6502 work in terms of the new functions. Also, a set of functions
6503 to handle the internal storage of the configuration data is
6504 provided to make it easier to write new configuration file
6505 reader "classes" (I can definitely see something reading a
6506 configuration file in XML format, for example), called _CONF_*,
6507 or "the configuration storage API"...
6509 The new configuration file reading functions are:
6511 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6512 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6514 NCONF_default, NCONF_WIN32
6516 NCONF_dump_fp, NCONF_dump_bio
6518 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6519 NCONF_new creates a new CONF object. This works in the same way
6520 as other interfaces in OpenSSL, like the BIO interface.
6521 NCONF_dump_* dump the internal storage of the configuration file,
6522 which is useful for debugging. All other functions take the same
6523 arguments as the old CONF_* functions wth the exception of the
6524 first that must be a `CONF *' instead of a `LHASH *'.
6526 To make it easer to use the new classes with the old CONF_* functions,
6527 the function CONF_set_default_method is provided.
6530 *) Add '-tls1' option to 'openssl ciphers', which was already
6531 mentioned in the documentation but had not been implemented.
6532 (This option is not yet really useful because even the additional
6533 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6536 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6537 OpenSSL-based applications) load shared libraries and bind to
6538 them in a portable way.
6539 [Geoff Thorpe, with contributions from Richard Levitte]
6541 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6543 *) Make sure _lrotl and _lrotr are only used with MSVC.
6545 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6546 (the default implementation of RAND_status).
6548 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6549 to '-clrext' (= clear extensions), as intended and documented.
6550 [Bodo Moeller; inconsistency pointed out by Michael Attili
6553 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6554 was larger than the MD block size.
6555 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6557 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6558 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6559 using the passed key: if the passed key was a private key the result
6560 of X509_print(), for example, would be to print out all the private key
6564 *) des_quad_cksum() byte order bug fix.
6565 [Ulf Möller, using the problem description in krb4-0.9.7, where
6566 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6568 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6570 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6572 *) For easily testing in shell scripts whether some command
6573 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6574 returns with exit code 0 iff no command of the given name is available.
6575 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6576 the output goes to stdout and nothing is printed to stderr.
6577 Additional arguments are always ignored.
6579 Since for each cipher there is a command of the same name,
6580 the 'no-cipher' compilation switches can be tested this way.
6582 ('openssl no-XXX' is not able to detect pseudo-commands such
6583 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6586 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6589 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6590 is set; it will be thrown away anyway because each handshake creates
6592 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6593 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6594 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6595 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6598 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6599 'Q' and 'R' lose their special meanings (quit/renegotiate).
6600 This is part of what -quiet does; unlike -quiet, -ign_eof
6601 does not suppress any output.
6604 *) Add compatibility options to the purpose and trust code. The
6605 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6606 accepts a certificate or CA, this was the previous behaviour,
6607 with all the associated security issues.
6609 X509_TRUST_COMPAT is the old trust behaviour: only and
6610 automatically trust self signed roots in certificate store. A
6611 new trust setting X509_TRUST_DEFAULT is used to specify that
6612 a purpose has no associated trust setting and it should instead
6613 use the value in the default purpose.
6616 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6617 and fix a memory leak.
6620 *) In util/mkerr.pl (which implements 'make errors'), preserve
6621 reason strings from the previous version of the .c file, as
6622 the default to have only downcase letters (and digits) in
6623 automatically generated reasons codes is not always appropriate.
6626 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6627 using strerror. Previously, ERR_reason_error_string() returned
6628 library names as reason strings for SYSerr; but SYSerr is a special
6629 case where small numbers are errno values, not library numbers.
6632 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6633 converts DSA parameters into DH parameters. (When creating parameters,
6634 DSA_generate_parameters is used.)
6637 *) Include 'length' (recommended exponent length) in C code generated
6638 by 'openssl dhparam -C'.
6641 *) The second argument to set_label in perlasm was already being used
6642 so couldn't be used as a "file scope" flag. Moved to third argument
6646 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6647 instead of RAND_bytes for encryption IVs and salts.
6650 *) Include RAND_status() into RAND_METHOD instead of implementing
6651 it only for md_rand.c Otherwise replacing the PRNG by calling
6652 RAND_set_rand_method would be impossible.
6655 *) Don't let DSA_generate_key() enter an infinite loop if the random
6656 number generation fails.
6659 *) New 'rand' application for creating pseudo-random output.
6662 *) Added configuration support for Linux/IA64
6663 [Rolf Haberrecker <rolf@suse.de>]
6665 *) Assembler module support for Mingw32.
6668 *) Shared library support for HPUX (in shlib/).
6669 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6671 *) Shared library support for Solaris gcc.
6672 [Lutz Behnke <behnke@trustcenter.de>]
6674 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6676 *) PKCS7_encrypt() was adding text MIME headers twice because they
6677 were added manually and by SMIME_crlf_copy().
6680 *) In bntest.c don't call BN_rand with zero bits argument.
6681 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6683 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6684 case was implemented. This caused BN_div_recp() to fail occasionally.
6687 *) Add an optional second argument to the set_label() in the perl
6688 assembly language builder. If this argument exists and is set
6689 to 1 it signals that the assembler should use a symbol whose
6690 scope is the entire file, not just the current function. This
6691 is needed with MASM which uses the format label:: for this scope.
6692 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6694 *) Change the ASN1 types so they are typedefs by default. Before
6695 almost all types were #define'd to ASN1_STRING which was causing
6696 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6700 *) Change names of new functions to the new get1/get0 naming
6701 convention: After 'get1', the caller owns a reference count
6702 and has to call ..._free; 'get0' returns a pointer to some
6703 data structure without incrementing reference counters.
6704 (Some of the existing 'get' functions increment a reference
6705 counter, some don't.)
6706 Similarly, 'set1' and 'add1' functions increase reference
6707 counters or duplicate objects.
6710 *) Allow for the possibility of temp RSA key generation failure:
6711 the code used to assume it always worked and crashed on failure.
6714 *) Fix potential buffer overrun problem in BIO_printf().
6715 [Ulf Möller, using public domain code by Patrick Powell; problem
6716 pointed out by David Sacerdote <das33@cornell.edu>]
6718 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6719 RAND_egd() and RAND_status(). In the command line application,
6720 the EGD socket can be specified like a seed file using RANDFILE
6724 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6725 Some CAs (e.g. Verisign) distribute certificates in this form.
6728 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6729 list to exclude them. This means that no special compilation option
6730 is needed to use anonymous DH: it just needs to be included in the
6734 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6735 EVP_MD_type. The old functionality is available in a new macro called
6736 EVP_MD_md(). Change code that uses it and update docs.
6739 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6740 where the 'void *' argument is replaced by a function pointer argument.
6741 Previously 'void *' was abused to point to functions, which works on
6742 many platforms, but is not correct. As these functions are usually
6743 called by macros defined in OpenSSL header files, most source code
6744 should work without changes.
6747 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6748 sections with information on -D... compiler switches used for
6749 compiling the library so that applications can see them. To enable
6750 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6751 must be defined. E.g.,
6752 #define OPENSSL_ALGORITHM_DEFINES
6753 #include <openssl/opensslconf.h>
6754 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6755 [Richard Levitte, Ulf and Bodo Möller]
6757 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6761 *) Change the 'other' type in certificate aux info to a STACK_OF
6762 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6763 the required ASN1 format: arbitrary types determined by an OID.
6766 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6767 argument to 'req'. This is not because the function is newer or
6768 better than others it just uses the work 'NEW' in the certificate
6769 request header lines. Some software needs this.
6772 *) Reorganise password command line arguments: now passwords can be
6773 obtained from various sources. Delete the PEM_cb function and make
6774 it the default behaviour: i.e. if the callback is NULL and the
6775 usrdata argument is not NULL interpret it as a null terminated pass
6776 phrase. If usrdata and the callback are NULL then the pass phrase
6777 is prompted for as usual.
6780 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6781 the support is automatically enabled. The resulting binaries will
6782 autodetect the card and use it if present.
6783 [Ben Laurie and Compaq Inc.]
6785 *) Work around for Netscape hang bug. This sends certificate request
6786 and server done in one record. Since this is perfectly legal in the
6787 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6788 the bugs/SSLv3 entry for more info.
6791 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6794 *) Add -rand argument to smime and pkcs12 applications and read/write
6798 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6801 *) Add command line password options to the remaining applications.
6804 *) Bug fix for BN_div_recp() for numerators with an even number of
6808 *) More tests in bntest.c, and changed test_bn output.
6811 *) ./config recognizes MacOS X now.
6814 *) Bug fix for BN_div() when the first words of num and divsor are
6815 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6818 *) Add support for various broken PKCS#8 formats, and command line
6819 options to produce them.
6822 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6823 get temporary BIGNUMs from a BN_CTX.
6826 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6830 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6831 include a #define from the old name to the new. The original intent
6832 was that statically linked binaries could for example just call
6833 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6834 link with digests. This never worked becayse SSLeay_add_all_digests()
6835 and SSLeay_add_all_ciphers() were in the same source file so calling
6836 one would link with the other. They are now in separate source files.
6839 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6842 *) Use a less unusual form of the Miller-Rabin primality test (it used
6843 a binary algorithm for exponentiation integrated into the Miller-Rabin
6844 loop, our standard modexp algorithms are faster).
6847 *) Support for the EBCDIC character set completed.
6848 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6850 *) Source code cleanups: use const where appropriate, eliminate casts,
6851 use void * instead of char * in lhash.
6854 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6855 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6856 this the server could overwrite ephemeral keys that the client
6860 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6861 using 50 iterations of the Rabin-Miller test.
6863 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6864 iterations of the Rabin-Miller test as required by the appendix
6865 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6866 As BN_is_prime_fasttest includes trial division, DSA parameter
6867 generation becomes much faster.
6869 This implies a change for the callback functions in DSA_is_prime
6870 and DSA_generate_parameters: The callback function is called once
6871 for each positive witness in the Rabin-Miller test, not just
6872 occasionally in the inner loop; and the parameters to the
6873 callback function now provide an iteration count for the outer
6874 loop rather than for the current invocation of the inner loop.
6875 DSA_generate_parameters additionally can call the callback
6876 function with an 'iteration count' of -1, meaning that a
6877 candidate has passed the trial division test (when q is generated
6878 from an application-provided seed, trial division is skipped).
6881 *) New function BN_is_prime_fasttest that optionally does trial
6882 division before starting the Rabin-Miller test and has
6883 an additional BN_CTX * argument (whereas BN_is_prime always
6884 has to allocate at least one BN_CTX).
6885 'callback(1, -1, cb_arg)' is called when a number has passed the
6886 trial division stage.
6889 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6893 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6896 *) New function BN_pseudo_rand().
6899 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6900 bignum version of BN_from_montgomery() with the working code from
6901 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6905 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6906 made it impossible to use the same SSL_SESSION data structure in
6907 SSL2 clients in multiple threads.
6910 *) The return value of RAND_load_file() no longer counts bytes obtained
6911 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6912 to seed the PRNG (previously an explicit byte count was required).
6913 [Ulf Möller, Bodo Möller]
6915 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6916 used (char *) instead of (void *) and had casts all over the place.
6919 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6922 *) Retain source code compatibility for BN_prime_checks macro:
6923 BN_is_prime(..., BN_prime_checks, ...) now uses
6924 BN_prime_checks_for_size to determine the appropriate number of
6925 Rabin-Miller iterations.
6928 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6929 DH_CHECK_P_NOT_SAFE_PRIME.
6930 (Check if this is true? OpenPGP calls them "strong".)
6933 *) Merge the functionality of "dh" and "gendh" programs into a new program
6934 "dhparam". The old programs are retained for now but will handle DH keys
6935 (instead of parameters) in future.
6938 *) Make the ciphers, s_server and s_client programs check the return values
6939 when a new cipher list is set.
6942 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6943 ciphers. Before when the 56bit ciphers were enabled the sorting was
6946 The syntax for the cipher sorting has been extended to support sorting by
6947 cipher-strength (using the strength_bits hard coded in the tables).
6948 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6950 Fix a bug in the cipher-command parser: when supplying a cipher command
6951 string with an "undefined" symbol (neither command nor alphanumeric
6952 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6953 an error is flagged.
6955 Due to the strength-sorting extension, the code of the
6956 ssl_create_cipher_list() function was completely rearranged. I hope that
6957 the readability was also increased :-)
6958 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6960 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6961 for the first serial number and places 2 in the serial number file. This
6962 avoids problems when the root CA is created with serial number zero and
6963 the first user certificate has the same issuer name and serial number
6967 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6968 the new code. Add documentation for this stuff.
6971 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6972 X509_*() to X509at_*() on the grounds that they don't handle X509
6973 structures and behave in an analagous way to the X509v3 functions:
6974 they shouldn't be called directly but wrapper functions should be used
6977 So we also now have some wrapper functions that call the X509at functions
6978 when passed certificate requests. (TO DO: similar things can be done with
6979 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6980 things. Some of these need some d2i or i2d and print functionality
6981 because they handle more complex structures.)
6984 *) Add missing #ifndefs that caused missing symbols when building libssl
6985 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6986 NO_RSA in ssl/s2*.c.
6987 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6989 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6990 has a return value which indicates the quality of the random data
6991 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6992 error queue. New function RAND_pseudo_bytes() generates output that is
6993 guaranteed to be unique but not unpredictable. RAND_add is like
6994 RAND_seed, but takes an extra argument for an entropy estimate
6995 (RAND_seed always assumes full entropy).
6998 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6999 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7000 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7001 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7002 false-positive rate of at most 2^-80 for random input.
7005 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7008 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7009 in the 0.9.5 release), this returns the chain
7010 from an X509_CTX structure with a dup of the stack and all
7011 the X509 reference counts upped: so the stack will exist
7012 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7015 Also make SSL_SESSION_print() print out the verify return
7019 *) Add manpage for the pkcs12 command. Also change the default
7020 behaviour so MAC iteration counts are used unless the new
7021 -nomaciter option is used. This improves file security and
7022 only older versions of MSIE (4.0 for example) need it.
7025 *) Honor the no-xxx Configure options when creating .DEF files.
7028 *) Add PKCS#10 attributes to field table: challengePassword,
7029 unstructuredName and unstructuredAddress. These are taken from
7030 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7031 international characters are used.
7033 More changes to X509_ATTRIBUTE code: allow the setting of types
7034 based on strings. Remove the 'loc' parameter when adding
7035 attributes because these will be a SET OF encoding which is sorted
7039 *) Initial changes to the 'req' utility to allow request generation
7040 automation. This will allow an application to just generate a template
7041 file containing all the field values and have req construct the
7044 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7045 used all over the place including certificate requests and PKCS#7
7046 structures. They are currently handled manually where necessary with
7047 some primitive wrappers for PKCS#7. The new functions behave in a
7048 manner analogous to the X509 extension functions: they allow
7049 attributes to be looked up by NID and added.
7051 Later something similar to the X509V3 code would be desirable to
7052 automatically handle the encoding, decoding and printing of the
7053 more complex types. The string types like challengePassword can
7054 be handled by the string table functions.
7056 Also modified the multi byte string table handling. Now there is
7057 a 'global mask' which masks out certain types. The table itself
7058 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7059 is useful when for example there is only one permissible type
7060 (as in countryName) and using the mask might result in no valid
7064 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7065 SSL_get_peer_finished to allow applications to obtain the latest
7066 Finished messages sent to the peer or expected from the peer,
7067 respectively. (SSL_get_peer_finished is usually the Finished message
7068 actually received from the peer, otherwise the protocol will be aborted.)
7070 As the Finished message are message digests of the complete handshake
7071 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7072 be used for external authentication procedures when the authentication
7073 provided by SSL/TLS is not desired or is not enough.
7076 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7077 the host supports BWX extension and if Compaq C is present on the
7078 $PATH. Just exploiting of the BWX extension results in 20-30%
7079 performance kick for some algorithms, e.g. DES and RC4 to mention
7080 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7084 *) Add support for MS "fast SGC". This is arguably a violation of the
7085 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7086 weak crypto and after checking the certificate is SGC a second one
7087 with strong crypto. MS SGC stops the first handshake after receiving
7088 the server certificate message and sends a second client hello. Since
7089 a server will typically do all the time consuming operations before
7090 expecting any further messages from the client (server key exchange
7091 is the most expensive) there is little difference between the two.
7093 To get OpenSSL to support MS SGC we have to permit a second client
7094 hello message after we have sent server done. In addition we have to
7095 reset the MAC if we do get this second client hello.
7098 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7099 if a DER encoded private key is RSA or DSA traditional format. Changed
7100 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7101 format DER encoded private key. Newer code should use PKCS#8 format which
7102 has the key type encoded in the ASN1 structure. Added DER private key
7103 support to pkcs8 application.
7106 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7107 ciphersuites has been selected (as required by the SSL 3/TLS 1
7108 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7109 is set, we interpret this as a request to violate the specification
7110 (the worst that can happen is a handshake failure, and 'correct'
7111 behaviour would result in a handshake failure anyway).
7114 *) In SSL_CTX_add_session, take into account that there might be multiple
7115 SSL_SESSION structures with the same session ID (e.g. when two threads
7116 concurrently obtain them from an external cache).
7117 The internal cache can handle only one SSL_SESSION with a given ID,
7118 so if there's a conflict, we now throw out the old one to achieve
7122 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7123 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7124 some routines that use cipher OIDs: some ciphers do not have OIDs
7125 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7129 *) Simplify the trust setting structure and code. Now we just have
7130 two sequences of OIDs for trusted and rejected settings. These will
7131 typically have values the same as the extended key usage extension
7132 and any application specific purposes.
7134 The trust checking code now has a default behaviour: it will just
7135 check for an object with the same NID as the passed id. Functions can
7136 be provided to override either the default behaviour or the behaviour
7137 for a given id. SSL client, server and email already have functions
7138 in place for compatibility: they check the NID and also return "trusted"
7139 if the certificate is self signed.
7142 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7143 traditional format into an EVP_PKEY structure.
7146 *) Add a password callback function PEM_cb() which either prompts for
7147 a password if usr_data is NULL or otherwise assumes it is a null
7148 terminated password. Allow passwords to be passed on command line
7149 environment or config files in a few more utilities.
7152 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7153 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7154 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7155 Update documentation.
7158 *) Support for ASN1 "NULL" type. This could be handled before by using
7159 ASN1_TYPE but there wasn't any function that would try to read a NULL
7160 and produce an error if it couldn't. For compatibility we also have
7161 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7162 don't allocate anything because they don't need to.
7165 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7167 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7169 *) Rebuild of the memory allocation routines used by OpenSSL code and
7170 possibly others as well. The purpose is to make an interface that
7171 provide hooks so anyone can build a separate set of allocation and
7172 deallocation routines to be used by OpenSSL, for example memory
7173 pool implementations, or something else, which was previously hard
7174 since Malloc(), Realloc() and Free() were defined as macros having
7175 the values malloc, realloc and free, respectively (except for Win32
7176 compilations). The same is provided for memory debugging code.
7177 OpenSSL already comes with functionality to find memory leaks, but
7178 this gives people a chance to debug other memory problems.
7180 With these changes, a new set of functions and macros have appeared:
7182 CRYPTO_set_mem_debug_functions() [F]
7183 CRYPTO_get_mem_debug_functions() [F]
7184 CRYPTO_dbg_set_options() [F]
7185 CRYPTO_dbg_get_options() [F]
7186 CRYPTO_malloc_debug_init() [M]
7188 The memory debug functions are NULL by default, unless the library
7189 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7190 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7191 gives the standard debugging functions that come with OpenSSL) or
7192 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7193 provided by the library user) must be used. When the standard
7194 debugging functions are used, CRYPTO_dbg_set_options can be used to
7195 request additional information:
7196 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7197 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7199 Also, things like CRYPTO_set_mem_functions will always give the
7200 expected result (the new set of functions is used for allocation
7201 and deallocation) at all times, regardless of platform and compiler
7204 To finish it up, some functions that were never use in any other
7205 way than through macros have a new API and new semantic:
7208 CRYPTO_dbg_realloc()
7211 All macros of value have retained their old syntax.
7212 [Richard Levitte and Bodo Moeller]
7214 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7215 ordering of SMIMECapabilities wasn't in "strength order" and there
7216 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7220 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7221 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7222 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7224 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7225 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7226 functionality to handle multipart/signed properly) and a utility
7227 called 'smime' to call all this stuff. This is based on code I
7228 originally wrote for Celo who have kindly allowed it to be
7229 included in OpenSSL.
7232 *) Add variants des_set_key_checked and des_set_key_unchecked of
7233 des_set_key (aka des_key_sched). Global variable des_check_key
7234 decides which of these is called by des_set_key; this way
7235 des_check_key behaves as it always did, but applications and
7236 the library itself, which was buggy for des_check_key == 1,
7237 have a cleaner way to pick the version they need.
7240 *) New function PKCS12_newpass() which changes the password of a
7244 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7245 dynamic mix. In both cases the ids can be used as an index into the
7246 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7247 functions so they accept a list of the field values and the
7248 application doesn't need to directly manipulate the X509_TRUST
7252 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7256 *) Modify the way the V3 extension code looks up extensions. This now
7257 works in a similar way to the object code: we have some "standard"
7258 extensions in a static table which is searched with OBJ_bsearch()
7259 and the application can add dynamic ones if needed. The file
7260 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7261 updated whenever a new extension is added to the core code and kept
7262 in ext_nid order. There is a simple program 'tabtest.c' which checks
7263 this. New extensions are not added too often so this file can readily
7264 be maintained manually.
7266 There are two big advantages in doing things this way. The extensions
7267 can be looked up immediately and no longer need to be "added" using
7268 X509V3_add_standard_extensions(): this function now does nothing.
7269 [Side note: I get *lots* of email saying the extension code doesn't
7270 work because people forget to call this function]
7271 Also no dynamic allocation is done unless new extensions are added:
7272 so if we don't add custom extensions there is no need to call
7273 X509V3_EXT_cleanup().
7276 *) Modify enc utility's salting as follows: make salting the default. Add a
7277 magic header, so unsalted files fail gracefully instead of just decrypting
7278 to garbage. This is because not salting is a big security hole, so people
7279 should be discouraged from doing it.
7282 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7283 digest to be passed on the command line but it only used this
7284 parameter when signing a certificate. Modified so all relevant
7285 operations are affected by the digest parameter including the
7286 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7287 DSA key was used because it didn't fix the digest.
7290 *) Initial certificate chain verify code. Currently tests the untrusted
7291 certificates for consistency with the verify purpose (which is set
7292 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7294 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7295 this is because it will reject chains with invalid extensions whereas
7296 every previous version of OpenSSL and SSLeay made no checks at all.
7298 Trust code: checks the root CA for the relevant trust settings. Trust
7299 settings have an initial value consistent with the verify purpose: e.g.
7300 if the verify purpose is for SSL client use it expects the CA to be
7301 trusted for SSL client use. However the default value can be changed to
7302 permit custom trust settings: one example of this would be to only trust
7303 certificates from a specific "secure" set of CAs.
7305 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7306 which should be used for version portability: especially since the
7307 verify structure is likely to change more often now.
7309 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7310 to set them. If not set then assume SSL clients will verify SSL servers
7313 Two new options to the verify program: -untrusted allows a set of
7314 untrusted certificates to be passed in and -purpose which sets the
7315 intended purpose of the certificate. If a purpose is set then the
7316 new chain verify code is used to check extension consistency.
7319 *) Support for the authority information access extension.
7322 *) Modify RSA and DSA PEM read routines to transparently handle
7323 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7324 public keys in a format compatible with certificate
7325 SubjectPublicKeyInfo structures. Unfortunately there were already
7326 functions called *_PublicKey_* which used various odd formats so
7327 these are retained for compatibility: however the DSA variants were
7328 never in a public release so they have been deleted. Changed dsa/rsa
7329 utilities to handle the new format: note no releases ever handled public
7330 keys so we should be OK.
7332 The primary motivation for this change is to avoid the same fiasco
7333 that dogs private keys: there are several incompatible private key
7334 formats some of which are standard and some OpenSSL specific and
7335 require various evil hacks to allow partial transparent handling and
7336 even then it doesn't work with DER formats. Given the option anything
7337 other than PKCS#8 should be dumped: but the other formats have to
7338 stay in the name of compatibility.
7340 With public keys and the benefit of hindsight one standard format
7341 is used which works with EVP_PKEY, RSA or DSA structures: though
7342 it clearly returns an error if you try to read the wrong kind of key.
7344 Added a -pubkey option to the 'x509' utility to output the public key.
7345 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7346 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7347 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7348 that do the same as the EVP_PKEY_assign_*() except they up the
7349 reference count of the added key (they don't "swallow" the
7353 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7354 CRLs would fail if the file contained no certificates or no CRLs:
7355 added a new function to read in both types and return the number
7356 read: this means that if none are read it will be an error. The
7357 DER versions of the certificate and CRL reader would always fail
7358 because it isn't possible to mix certificates and CRLs in DER format
7359 without choking one or the other routine. Changed this to just read
7360 a certificate: this is the best we can do. Also modified the code
7361 in apps/verify.c to take notice of return codes: it was previously
7362 attempting to read in certificates from NULL pointers and ignoring
7363 any errors: this is one reason why the cert and CRL reader seemed
7364 to work. It doesn't check return codes from the default certificate
7365 routines: these may well fail if the certificates aren't installed.
7368 *) Code to support otherName option in GeneralName.
7371 *) First update to verify code. Change the verify utility
7372 so it warns if it is passed a self signed certificate:
7373 for consistency with the normal behaviour. X509_verify
7374 has been modified to it will now verify a self signed
7375 certificate if *exactly* the same certificate appears
7376 in the store: it was previously impossible to trust a
7377 single self signed certificate. This means that:
7378 openssl verify ss.pem
7379 now gives a warning about a self signed certificate but
7380 openssl verify -CAfile ss.pem ss.pem
7384 *) For servers, store verify_result in SSL_SESSION data structure
7385 (and add it to external session representation).
7386 This is needed when client certificate verifications fails,
7387 but an application-provided verification callback (set by
7388 SSL_CTX_set_cert_verify_callback) allows accepting the session
7389 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7390 but returns 1): When the session is reused, we have to set
7391 ssl->verify_result to the appropriate error code to avoid
7393 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7395 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7396 case in PKCS7_dataInit() where the signed PKCS7 structure
7397 didn't contain any existing data because it was being created.
7398 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7400 *) Add a salt to the key derivation routines in enc.c. This
7401 forms the first 8 bytes of the encrypted file. Also add a
7402 -S option to allow a salt to be input on the command line.
7405 *) New function X509_cmp(). Oddly enough there wasn't a function
7406 to compare two certificates. We do this by working out the SHA1
7407 hash and comparing that. X509_cmp() will be needed by the trust
7411 *) SSL_get1_session() is like SSL_get_session(), but increments
7412 the reference count in the SSL_SESSION returned.
7413 [Geoff Thorpe <geoff@eu.c2.net>]
7415 *) Fix for 'req': it was adding a null to request attributes.
7416 Also change the X509_LOOKUP and X509_INFO code to handle
7417 certificate auxiliary information.
7420 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7424 *) Add the possibility to add extra information to the memory leak
7425 detecting output, to form tracebacks, showing from where each
7426 allocation was originated: CRYPTO_push_info("constant string") adds
7427 the string plus current file name and line number to a per-thread
7428 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7429 is like calling CYRPTO_pop_info() until the stack is empty.
7430 Also updated memory leak detection code to be multi-thread-safe.
7433 *) Add options -text and -noout to pkcs7 utility and delete the
7434 encryption options which never did anything. Update docs.
7437 *) Add options to some of the utilities to allow the pass phrase
7438 to be included on either the command line (not recommended on
7439 OSes like Unix) or read from the environment. Update the
7440 manpages and fix a few bugs.
7443 *) Add a few manpages for some of the openssl commands.
7446 *) Fix the -revoke option in ca. It was freeing up memory twice,
7447 leaking and not finding already revoked certificates.
7450 *) Extensive changes to support certificate auxiliary information.
7451 This involves the use of X509_CERT_AUX structure and X509_AUX
7452 functions. An X509_AUX function such as PEM_read_X509_AUX()
7453 can still read in a certificate file in the usual way but it
7454 will also read in any additional "auxiliary information". By
7455 doing things this way a fair degree of compatibility can be
7456 retained: existing certificates can have this information added
7457 using the new 'x509' options.
7459 Current auxiliary information includes an "alias" and some trust
7460 settings. The trust settings will ultimately be used in enhanced
7461 certificate chain verification routines: currently a certificate
7462 can only be trusted if it is self signed and then it is trusted
7466 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7467 The problem was that one of the replacement routines had not been working
7468 since SSLeay releases. For now the offending routine has been replaced
7469 with non-optimised assembler. Even so, this now gives around 95%
7470 performance improvement for 1024 bit RSA signs.
7473 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7474 handling. Most clients have the effective key size in bits equal to
7475 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7476 A few however don't do this and instead use the size of the decrypted key
7477 to determine the RC2 key length and the AlgorithmIdentifier to determine
7478 the effective key length. In this case the effective key length can still
7479 be 40 bits but the key length can be 168 bits for example. This is fixed
7480 by manually forcing an RC2 key into the EVP_PKEY structure because the
7481 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7482 the key length and effective key length are equal.
7485 *) Add a bunch of functions that should simplify the creation of
7486 X509_NAME structures. Now you should be able to do:
7487 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7488 and have it automatically work out the correct field type and fill in
7489 the structures. The more adventurous can try:
7490 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7491 and it will (hopefully) work out the correct multibyte encoding.
7494 *) Change the 'req' utility to use the new field handling and multibyte
7495 copy routines. Before the DN field creation was handled in an ad hoc
7496 way in req, ca, and x509 which was rather broken and didn't support
7497 BMPStrings or UTF8Strings. Since some software doesn't implement
7498 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7499 using the dirstring_type option. See the new comment in the default
7500 openssl.cnf for more info.
7503 *) Make crypto/rand/md_rand.c more robust:
7504 - Assure unique random numbers after fork().
7505 - Make sure that concurrent threads access the global counter and
7506 md serializably so that we never lose entropy in them
7507 or use exactly the same state in multiple threads.
7508 Access to the large state is not always serializable because
7509 the additional locking could be a performance killer, and
7510 md should be large enough anyway.
7513 *) New file apps/app_rand.c with commonly needed functionality
7514 for handling the random seed file.
7516 Use the random seed file in some applications that previously did not:
7518 dsaparam -genkey (which also ignored its '-rand' option),
7521 x509 (when signing).
7522 Except on systems with /dev/urandom, it is crucial to have a random
7523 seed file at least for key creation, DSA signing, and for DH exchanges;
7524 for RSA signatures we could do without one.
7526 gendh and gendsa (unlike genrsa) used to read only the first byte
7527 of each file listed in the '-rand' option. The function as previously
7528 found in genrsa is now in app_rand.c and is used by all programs
7529 that support '-rand'.
7532 *) In RAND_write_file, use mode 0600 for creating files;
7533 don't just chmod when it may be too late.
7536 *) Report an error from X509_STORE_load_locations
7537 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7540 *) New function ASN1_mbstring_copy() this copies a string in either
7541 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7542 into an ASN1_STRING type. A mask of permissible types is passed
7543 and it chooses the "minimal" type to use or an error if not type
7547 *) Add function equivalents to the various macros in asn1.h. The old
7548 macros are retained with an M_ prefix. Code inside the library can
7549 use the M_ macros. External code (including the openssl utility)
7550 should *NOT* in order to be "shared library friendly".
7553 *) Add various functions that can check a certificate's extensions
7554 to see if it usable for various purposes such as SSL client,
7555 server or S/MIME and CAs of these types. This is currently
7556 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7557 verification. Also added a -purpose flag to x509 utility to
7558 print out all the purposes.
7561 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7565 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7566 for, obtain and decode and extension and obtain its critical flag.
7567 This allows all the necessary extension code to be handled in a
7568 single function call.
7571 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7572 platforms. See crypto/rc4/rc4_enc.c for further details.
7575 *) New -noout option to asn1parse. This causes no output to be produced
7576 its main use is when combined with -strparse and -out to extract data
7577 from a file (which may not be in ASN.1 format).
7580 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7581 when producing the local key id.
7582 [Richard Levitte <levitte@stacken.kth.se>]
7584 *) New option -dhparam in s_server. This allows a DH parameter file to be
7585 stated explicitly. If it is not stated then it tries the first server
7586 certificate file. The previous behaviour hard coded the filename
7590 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7591 a public key to be input or output. For example:
7592 openssl rsa -in key.pem -pubout -out pubkey.pem
7593 Also added necessary DSA public key functions to handle this.
7596 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7597 in the message. This was handled by allowing
7598 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7599 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7601 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7602 to the end of the strings whereas this didn't. This would cause problems
7603 if strings read with d2i_ASN1_bytes() were later modified.
7604 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7606 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7607 data and it contains EOF it will end up returning an error. This is
7608 caused by input 46 bytes long. The cause is due to the way base64
7609 BIOs find the start of base64 encoded data. They do this by trying a
7610 trial decode on each line until they find one that works. When they
7611 do a flag is set and it starts again knowing it can pass all the
7612 data directly through the decoder. Unfortunately it doesn't reset
7613 the context it uses. This means that if EOF is reached an attempt
7614 is made to pass two EOFs through the context and this causes the
7615 resulting error. This can also cause other problems as well. As is
7616 usual with these problems it takes *ages* to find and the fix is
7617 trivial: move one line.
7618 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7620 *) Ugly workaround to get s_client and s_server working under Windows. The
7621 old code wouldn't work because it needed to select() on sockets and the
7622 tty (for keypresses and to see if data could be written). Win32 only
7623 supports select() on sockets so we select() with a 1s timeout on the
7624 sockets and then see if any characters are waiting to be read, if none
7625 are present then we retry, we also assume we can always write data to
7626 the tty. This isn't nice because the code then blocks until we've
7627 received a complete line of data and it is effectively polling the
7628 keyboard at 1s intervals: however it's quite a bit better than not
7629 working at all :-) A dedicated Windows application might handle this
7630 with an event loop for example.
7633 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7634 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7635 will be called when RSA_sign() and RSA_verify() are used. This is useful
7636 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7637 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7638 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7639 This necessitated the support of an extra signature type NID_md5_sha1
7640 for SSL signatures and modifications to the SSL library to use it instead
7641 of calling RSA_public_decrypt() and RSA_private_encrypt().
7644 *) Add new -verify -CAfile and -CApath options to the crl program, these
7645 will lookup a CRL issuers certificate and verify the signature in a
7646 similar way to the verify program. Tidy up the crl program so it
7647 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7648 less strict. It will now permit CRL extensions even if it is not
7649 a V2 CRL: this will allow it to tolerate some broken CRLs.
7652 *) Initialize all non-automatic variables each time one of the openssl
7653 sub-programs is started (this is necessary as they may be started
7654 multiple times from the "OpenSSL>" prompt).
7655 [Lennart Bang, Bodo Moeller]
7657 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7658 removing all other RSA functionality (this is what NO_RSA does). This
7659 is so (for example) those in the US can disable those operations covered
7660 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7664 *) Non-copying interface to BIO pairs.
7665 (still largely untested)
7668 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7669 ASCII string. This was handled independently in various places before.
7672 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7673 UTF8 strings a character at a time.
7676 *) Use client_version from client hello to select the protocol
7677 (s23_srvr.c) and for RSA client key exchange verification
7678 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7681 *) Add various utility functions to handle SPKACs, these were previously
7682 handled by poking round in the structure internals. Added new function
7683 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7684 print, verify and generate SPKACs. Based on an original idea from
7685 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7688 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7691 *) Allow the config file extension section to be overwritten on the
7692 command line. Based on an original idea from Massimiliano Pala
7693 <madwolf@comune.modena.it>. The new option is called -extensions
7694 and can be applied to ca, req and x509. Also -reqexts to override
7695 the request extensions in req and -crlexts to override the crl extensions
7699 *) Add new feature to the SPKAC handling in ca. Now you can include
7700 the same field multiple times by preceding it by "XXXX." for example:
7703 this is the same syntax as used in the req config file.
7706 *) Allow certificate extensions to be added to certificate requests. These
7707 are specified in a 'req_extensions' option of the req section of the
7708 config file. They can be printed out with the -text option to req but
7709 are otherwise ignored at present.
7712 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7713 data read consists of only the final block it would not decrypted because
7714 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7715 A misplaced 'break' also meant the decrypted final block might not be
7716 copied until the next read.
7719 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7720 a few extra parameters to the DH structure: these will be useful if
7721 for example we want the value of 'q' or implement X9.42 DH.
7724 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7725 provides hooks that allow the default DSA functions or functions on a
7726 "per key" basis to be replaced. This allows hardware acceleration and
7727 hardware key storage to be handled without major modification to the
7728 library. Also added low level modexp hooks and CRYPTO_EX structure and
7729 associated functions.
7732 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7733 as "read only": it can't be written to and the buffer it points to will
7734 not be freed. Reading from a read only BIO is much more efficient than
7735 a normal memory BIO. This was added because there are several times when
7736 an area of memory needs to be read from a BIO. The previous method was
7737 to create a memory BIO and write the data to it, this results in two
7738 copies of the data and an O(n^2) reading algorithm. There is a new
7739 function BIO_new_mem_buf() which creates a read only memory BIO from
7740 an area of memory. Also modified the PKCS#7 routines to use read only
7744 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7745 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7746 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7747 but a retry condition occured while trying to read the rest.
7750 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7751 NID_pkcs7_encrypted by default: this was wrong since this should almost
7752 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7753 the encrypted data type: this is a more sensible place to put it and it
7754 allows the PKCS#12 code to be tidied up that duplicated this
7758 *) Changed obj_dat.pl script so it takes its input and output files on
7759 the command line. This should avoid shell escape redirection problems
7763 *) Initial support for certificate extension requests, these are included
7764 in things like Xenroll certificate requests. Included functions to allow
7765 extensions to be obtained and added.
7768 *) -crlf option to s_client and s_server for sending newlines as
7769 CRLF (as required by many protocols).
7772 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7774 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7775 [Ralf S. Engelschall]
7777 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7778 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7780 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7784 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7785 DH parameters/keys (q is lost during that conversion, but the resulting
7786 DH parameters contain its length).
7788 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7789 much faster than DH_generate_parameters (which creates parameters
7790 where p = 2*q + 1), and also the smaller q makes DH computations
7791 much more efficient (160-bit exponentiation instead of 1024-bit
7792 exponentiation); so this provides a convenient way to support DHE
7793 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7794 utter importance to use
7795 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7797 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7798 when such DH parameters are used, because otherwise small subgroup
7799 attacks may become possible!
7802 *) Avoid memory leak in i2d_DHparams.
7805 *) Allow the -k option to be used more than once in the enc program:
7806 this allows the same encrypted message to be read by multiple recipients.
7809 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7810 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7811 it will always use the numerical form of the OID, even if it has a short
7815 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7816 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7817 otherwise bn_mod_exp was called. In the case of hardware keys for example
7818 no private key components need be present and it might store extra data
7819 in the RSA structure, which cannot be accessed from bn_mod_exp.
7820 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7821 private key operations.
7824 *) Added support for SPARC Linux.
7827 *) pem_password_cb function type incompatibly changed from
7828 typedef int pem_password_cb(char *buf, int size, int rwflag);
7830 ....(char *buf, int size, int rwflag, void *userdata);
7831 so that applications can pass data to their callbacks:
7832 The PEM[_ASN1]_{read,write}... functions and macros now take an
7833 additional void * argument, which is just handed through whenever
7834 the password callback is called.
7835 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7837 New function SSL_CTX_set_default_passwd_cb_userdata.
7839 Compatibility note: As many C implementations push function arguments
7840 onto the stack in reverse order, the new library version is likely to
7841 interoperate with programs that have been compiled with the old
7842 pem_password_cb definition (PEM_whatever takes some data that
7843 happens to be on the stack as its last argument, and the callback
7844 just ignores this garbage); but there is no guarantee whatsoever that
7847 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7848 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7849 problems not only on Windows, but also on some Unix platforms.
7850 To avoid problematic command lines, these definitions are now in an
7851 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7852 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7855 *) MIPS III/IV assembler module is reimplemented.
7858 *) More DES library cleanups: remove references to srand/rand and
7859 delete an unused file.
7862 *) Add support for the the free Netwide assembler (NASM) under Win32,
7863 since not many people have MASM (ml) and it can be hard to obtain.
7864 This is currently experimental but it seems to work OK and pass all
7865 the tests. Check out INSTALL.W32 for info.
7868 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7869 without temporary keys kept an extra copy of the server key,
7870 and connections with temporary keys did not free everything in case
7874 *) New function RSA_check_key and new openssl rsa option -check
7875 for verifying the consistency of RSA keys.
7876 [Ulf Moeller, Bodo Moeller]
7878 *) Various changes to make Win32 compile work:
7879 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7880 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7881 comparison" warnings.
7882 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7885 *) Add a debugging option to PKCS#5 v2 key generation function: when
7886 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7887 derived keys are printed to stderr.
7890 *) Copy the flags in ASN1_STRING_dup().
7891 [Roman E. Pavlov <pre@mo.msk.ru>]
7893 *) The x509 application mishandled signing requests containing DSA
7894 keys when the signing key was also DSA and the parameters didn't match.
7896 It was supposed to omit the parameters when they matched the signing key:
7897 the verifying software was then supposed to automatically use the CA's
7898 parameters if they were absent from the end user certificate.
7900 Omitting parameters is no longer recommended. The test was also
7901 the wrong way round! This was probably due to unusual behaviour in
7902 EVP_cmp_parameters() which returns 1 if the parameters match.
7903 This meant that parameters were omitted when they *didn't* match and
7904 the certificate was useless. Certificates signed with 'ca' didn't have
7906 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7908 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7909 The interface is as follows:
7910 Applications can use
7911 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7912 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7913 "off" is now the default.
7914 The library internally uses
7915 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7916 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7917 to disable memory-checking temporarily.
7919 Some inconsistent states that previously were possible (and were
7920 even the default) are now avoided.
7922 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7923 with each memory chunk allocated; this is occasionally more helpful
7924 than just having a counter.
7926 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7928 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7932 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7933 which largely parallels "options", but is for changing API behaviour,
7934 whereas "options" are about protocol behaviour.
7935 Initial "mode" flags are:
7937 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7938 a single record has been written.
7939 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7940 retries use the same buffer location.
7941 (But all of the contents must be
7945 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7948 *) Fix problems with no-hmac etc.
7949 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7951 *) New functions RSA_get_default_method(), RSA_set_method() and
7952 RSA_get_method(). These allows replacement of RSA_METHODs without having
7953 to mess around with the internals of an RSA structure.
7956 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7957 Also really enable memory leak checks in openssl.c and in some
7959 [Chad C. Mulligan, Bodo Moeller]
7961 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7962 up the length of negative integers. This has now been simplified to just
7963 store the length when it is first determined and use it later, rather
7964 than trying to keep track of where data is copied and updating it to
7966 [Steve Henson, reported by Brien Wheeler
7967 <bwheeler@authentica-security.com>]
7969 *) Add a new function PKCS7_signatureVerify. This allows the verification
7970 of a PKCS#7 signature but with the signing certificate passed to the
7971 function itself. This contrasts with PKCS7_dataVerify which assumes the
7972 certificate is present in the PKCS#7 structure. This isn't always the
7973 case: certificates can be omitted from a PKCS#7 structure and be
7974 distributed by "out of band" means (such as a certificate database).
7977 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7978 function prototypes in pem.h, also change util/mkdef.pl to add the
7979 necessary function names.
7982 *) mk1mf.pl (used by Windows builds) did not properly read the
7983 options set by Configure in the top level Makefile, and Configure
7984 was not even able to write more than one option correctly.
7985 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7988 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7989 file to be loaded from a BIO or FILE pointer. The BIO version will
7990 for example allow memory BIOs to contain config info.
7993 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7994 Whoever hopes to achieve shared-library compatibility across versions
7995 must use this, not the compile-time macro.
7996 (Exercise 0.9.4: Which is the minimum library version required by
7998 Note: All this applies only to multi-threaded programs, others don't
8002 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8003 through a BIO pair triggered the default case, i.e.
8004 SSLerr(...,SSL_R_UNKNOWN_STATE).
8007 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8008 can use the SSL library even if none of the specific BIOs is
8012 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8013 for the encoded length.
8014 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8016 *) Add initial documentation of the X509V3 functions.
8019 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8020 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8021 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8022 secure PKCS#8 private key format with a high iteration count.
8025 *) Fix determination of Perl interpreter: A perl or perl5
8026 _directory_ in $PATH was also accepted as the interpreter.
8027 [Ralf S. Engelschall]
8029 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8030 wrong with it but it was very old and did things like calling
8031 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8035 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8036 to use the new extension code.
8039 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8040 with macros. This should make it easier to change their form, add extra
8041 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8045 *) Add to configuration table a new entry that can specify an alternative
8046 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8047 according to Mark Crispin <MRC@Panda.COM>.
8051 *) DES CBC did not update the IV. Weird.
8054 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8055 Changing the behaviour of the former might break existing programs --
8056 where IV updating is needed, des_ncbc_encrypt can be used.
8059 *) When bntest is run from "make test" it drives bc to check its
8060 calculations, as well as internally checking them. If an internal check
8061 fails, it needs to cause bc to give a non-zero result or make test carries
8062 on without noticing the failure. Fixed.
8065 *) DES library cleanups.
8068 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8069 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8070 ciphers. NOTE: although the key derivation function has been verified
8071 against some published test vectors it has not been extensively tested
8072 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8076 *) Instead of "mkdir -p", which is not fully portable, use new
8077 Perl script "util/mkdir-p.pl".
8080 *) Rewrite the way password based encryption (PBE) is handled. It used to
8081 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8082 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8083 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8084 the 'parameter' field of the AlgorithmIdentifier is passed to the
8085 underlying key generation function so it must do its own ASN1 parsing.
8086 This has also changed the EVP_PBE_CipherInit() function which now has a
8087 'parameter' argument instead of literal salt and iteration count values
8088 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8091 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8092 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8093 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8094 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8095 value was just used as a "magic string" and not used directly its
8096 value doesn't matter.
8099 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8103 *) "linux-sparc64" configuration (ultrapenguin).
8104 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8105 "linux-sparc" configuration.
8106 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8108 *) config now generates no-xxx options for missing ciphers.
8111 *) Support the EBCDIC character set (work in progress).
8112 File ebcdic.c not yet included because it has a different license.
8113 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8115 *) Support BS2000/OSD-POSIX.
8116 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8118 *) Make callbacks for key generation use void * instead of char *.
8121 *) Make S/MIME samples compile (not yet tested).
8124 *) Additional typesafe stacks.
8127 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8131 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8133 *) New configuration variant "sco5-gcc".
8135 *) Updated some demos.
8136 [Sean O Riordain, Wade Scholine]
8138 *) Add missing BIO_free at exit of pkcs12 application.
8141 *) Fix memory leak in conf.c.
8144 *) Updates for Win32 to assembler version of MD5.
8147 *) Set #! path to perl in apps/der_chop to where we found it
8148 instead of using a fixed path.
8151 *) SHA library changes for irix64-mips4-cc.
8154 *) Improvements for VMS support.
8158 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8160 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8161 This also avoids the problems with SC4.2 and unpatched SC5.
8162 [Andy Polyakov <appro@fy.chalmers.se>]
8164 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8165 These are required because of the typesafe stack would otherwise break
8166 existing code. If old code used a structure member which used to be STACK
8167 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8168 sk_num or sk_value it would produce an error because the num, data members
8169 are not present in STACK_OF. Now it just produces a warning. sk_set
8170 replaces the old method of assigning a value to sk_value
8171 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8172 that does this will no longer work (and should use sk_set instead) but
8173 this could be regarded as a "questionable" behaviour anyway.
8176 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8177 correctly handle encrypted S/MIME data.
8180 *) Change type of various DES function arguments from des_cblock
8181 (which means, in function argument declarations, pointer to char)
8182 to des_cblock * (meaning pointer to array with 8 char elements),
8183 which allows the compiler to do more typechecking; it was like
8184 that back in SSLeay, but with lots of ugly casts.
8186 Introduce new type const_des_cblock.
8189 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8190 problems: find RecipientInfo structure that matches recipient certificate
8191 and initialise the ASN1 structures properly based on passed cipher.
8194 *) Belatedly make the BN tests actually check the results.
8197 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8198 to and from BNs: it was completely broken. New compilation option
8199 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8200 key elements as negative integers.
8203 *) Reorganize and speed up MD5.
8204 [Andy Polyakov <appro@fy.chalmers.se>]
8207 [Richard Levitte <richard@levitte.org>]
8209 *) New option -out to asn1parse to allow the parsed structure to be
8210 output to a file. This is most useful when combined with the -strparse
8211 option to examine the output of things like OCTET STRINGS.
8214 *) Make SSL library a little more fool-proof by not requiring any longer
8215 that SSL_set_{accept,connect}_state be called before
8216 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8217 in many applications because usually everything *appeared* to work as
8218 intended anyway -- now it really works as intended).
8221 *) Move openssl.cnf out of lib/.
8224 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8225 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8226 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8227 [Ralf S. Engelschall]
8229 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8230 handle PKCS#7 enveloped data properly.
8231 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8233 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8234 copying pointers. The cert_st handling is changed by this in
8235 various ways (and thus what used to be known as ctx->default_cert
8236 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8237 any longer when s->cert does not give us what we need).
8238 ssl_cert_instantiate becomes obsolete by this change.
8239 As soon as we've got the new code right (possibly it already is?),
8240 we have solved a couple of bugs of the earlier code where s->cert
8241 was used as if it could not have been shared with other SSL structures.
8243 Note that using the SSL API in certain dirty ways now will result
8244 in different behaviour than observed with earlier library versions:
8245 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8246 does not influence s as it used to.
8248 In order to clean up things more thoroughly, inside SSL_SESSION
8249 we don't use CERT any longer, but a new structure SESS_CERT
8250 that holds per-session data (if available); currently, this is
8251 the peer's certificate chain and, for clients, the server's certificate
8252 and temporary key. CERT holds only those values that can have
8253 meaningful defaults in an SSL_CTX.
8256 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8257 from the internal representation. Various PKCS#7 fixes: remove some
8258 evil casts and set the enc_dig_alg field properly based on the signing
8262 *) Allow PKCS#12 password to be set from the command line or the
8263 environment. Let 'ca' get its config file name from the environment
8264 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8268 *) Allow certificate policies extension to use an IA5STRING for the
8269 organization field. This is contrary to the PKIX definition but
8270 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8274 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8275 without disallowing inline assembler and the like for non-pedantic builds.
8278 *) Support Borland C++ builder.
8279 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8284 *) SHA-1 cleanups and performance enhancements.
8285 [Andy Polyakov <appro@fy.chalmers.se>]
8287 *) Sparc v8plus assembler for the bignum library.
8288 [Andy Polyakov <appro@fy.chalmers.se>]
8290 *) Accept any -xxx and +xxx compiler options in Configure.
8293 *) Update HPUX configuration.
8296 *) Add missing sk_<type>_unshift() function to safestack.h
8297 [Ralf S. Engelschall]
8299 *) New function SSL_CTX_use_certificate_chain_file that sets the
8300 "extra_cert"s in addition to the certificate. (This makes sense
8301 only for "PEM" format files, as chains as a whole are not
8305 *) Support verify_depth from the SSL API.
8306 x509_vfy.c had what can be considered an off-by-one-error:
8307 Its depth (which was not part of the external interface)
8308 was actually counting the number of certificates in a chain;
8309 now it really counts the depth.
8312 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8313 instead of X509err, which often resulted in confusing error
8314 messages since the error codes are not globally unique
8315 (e.g. an alleged error in ssl3_accept when a certificate
8316 didn't match the private key).
8318 *) New function SSL_CTX_set_session_id_context that allows to set a default
8319 value (so that you don't need SSL_set_session_id_context for each
8320 connection using the SSL_CTX).
8323 *) OAEP decoding bug fix.
8326 *) Support INSTALL_PREFIX for package builders, as proposed by
8330 *) New Configure options "threads" and "no-threads". For systems
8331 where the proper compiler options are known (currently Solaris
8332 and Linux), "threads" is the default.
8335 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8338 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8339 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8340 such as /usr/local/bin.
8343 *) "make linux-shared" to build shared libraries.
8344 [Niels Poppe <niels@netbox.org>]
8346 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8349 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8350 extension adding in x509 utility.
8353 *) Remove NOPROTO sections and error code comments.
8356 *) Partial rewrite of the DEF file generator to now parse the ANSI
8360 *) New Configure options --prefix=DIR and --openssldir=DIR.
8363 *) Complete rewrite of the error code script(s). It is all now handled
8364 by one script at the top level which handles error code gathering,
8365 header rewriting and C source file generation. It should be much better
8366 than the old method: it now uses a modified version of Ulf's parser to
8367 read the ANSI prototypes in all header files (thus the old K&R definitions
8368 aren't needed for error creation any more) and do a better job of
8369 translating function codes into names. The old 'ASN1 error code imbedded
8370 in a comment' is no longer necessary and it doesn't use .err files which
8371 have now been deleted. Also the error code call doesn't have to appear all
8372 on one line (which resulted in some large lines...).
8375 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8378 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8379 0 (which usually indicates a closed connection), but continue reading.
8382 *) Fix some race conditions.
8385 *) Add support for CRL distribution points extension. Add Certificate
8386 Policies and CRL distribution points documentation.
8389 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8392 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8393 8 of keying material. Merlin has also confirmed interop with this fix
8394 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8395 [Merlin Hughes <merlin@baltimore.ie>]
8397 *) Fix lots of warnings.
8398 [Richard Levitte <levitte@stacken.kth.se>]
8400 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8401 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8402 [Richard Levitte <levitte@stacken.kth.se>]
8404 *) Fix problems with sizeof(long) == 8.
8405 [Andy Polyakov <appro@fy.chalmers.se>]
8407 *) Change functions to ANSI C.
8410 *) Fix typos in error codes.
8411 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8413 *) Remove defunct assembler files from Configure.
8416 *) SPARC v8 assembler BIGNUM implementation.
8417 [Andy Polyakov <appro@fy.chalmers.se>]
8419 *) Support for Certificate Policies extension: both print and set.
8420 Various additions to support the r2i method this uses.
8423 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8424 return a const string when you are expecting an allocated buffer.
8427 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8428 types DirectoryString and DisplayText.
8431 *) Add code to allow r2i extensions to access the configuration database,
8432 add an LHASH database driver and add several ctx helper functions.
8435 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8436 fail when they extended the size of a BIGNUM.
8439 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8440 support typesafe stack.
8443 *) Fix typo in SSL_[gs]et_options().
8444 [Nils Frostberg <nils@medcom.se>]
8446 *) Delete various functions and files that belonged to the (now obsolete)
8447 old X509V3 handling code.
8450 *) New Configure option "rsaref".
8453 *) Don't auto-generate pem.h.
8456 *) Introduce type-safe ASN.1 SETs.
8459 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8460 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8462 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8463 that links with OpenSSL (well at least cause lots of warnings), but fear
8464 not: the conversion is trivial, and it eliminates loads of evil casts. A
8465 few STACKed things have been converted already. Feel free to convert more.
8466 In the fullness of time, I'll do away with the STACK type altogether.
8469 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8470 specified in <certfile> by updating the entry in the index.txt file.
8471 This way one no longer has to edit the index.txt file manually for
8472 revoking a certificate. The -revoke option does the gory details now.
8473 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8475 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8476 `-text' option at all and this way the `-noout -text' combination was
8477 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8478 [Ralf S. Engelschall]
8480 *) Make sure a corresponding plain text error message exists for the
8481 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8482 verify callback function determined that a certificate was revoked.
8483 [Ralf S. Engelschall]
8485 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8486 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8487 all available cipers including rc5, which was forgotten until now.
8488 In order to let the testing shell script know which algorithms
8489 are available, a new (up to now undocumented) command
8490 "openssl list-cipher-commands" is used.
8493 *) Bugfix: s_client occasionally would sleep in select() when
8494 it should have checked SSL_pending() first.
8497 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8498 the raw DSA values prior to ASN.1 encoding.
8501 *) Tweaks to Configure
8502 [Niels Poppe <niels@netbox.org>]
8504 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8508 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8511 *) New config option to avoid instructions that are illegal on the 80386.
8512 The default code is faster, but requires at least a 486.
8515 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8516 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8517 same as SSL2_VERSION anyway.
8520 *) New "-showcerts" option for s_client.
8523 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8524 application. Various cleanups and fixes.
8527 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8528 modify error routines to work internally. Add error codes and PBE init
8529 to library startup routines.
8532 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8533 packing functions to asn1 and evp. Changed function names and error
8534 codes along the way.
8537 *) PKCS12 integration: and so it begins... First of several patches to
8538 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8539 objects to objects.h
8542 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8543 and display support for Thawte strong extranet extension.
8546 *) Add LinuxPPC support.
8547 [Jeff Dubrule <igor@pobox.org>]
8549 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8550 bn_div_words in alpha.s.
8551 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8553 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8554 OAEP isn't supported when OpenSSL is built with RSAref.
8555 [Ulf Moeller <ulf@fitug.de>]
8557 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8558 so they no longer are missing under -DNOPROTO.
8559 [Soren S. Jorvang <soren@t.dk>]
8562 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8564 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8565 doesn't work when the session is reused. Coming soon!
8568 *) Fix a security hole, that allows sessions to be reused in the wrong
8569 context thus bypassing client cert protection! All software that uses
8570 client certs and session caches in multiple contexts NEEDS PATCHING to
8571 allow session reuse! A fuller solution is in the works.
8572 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8574 *) Some more source tree cleanups (removed obsolete files
8575 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8576 permission on "config" script to be executable) and a fix for the INSTALL
8578 [Ulf Moeller <ulf@fitug.de>]
8580 *) Remove some legacy and erroneous uses of malloc, free instead of
8582 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8584 *) Make rsa_oaep_test return non-zero on error.
8585 [Ulf Moeller <ulf@fitug.de>]
8587 *) Add support for native Solaris shared libraries. Configure
8588 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8589 if someone would make that last step automatic.
8590 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8592 *) ctx_size was not built with the right compiler during "make links". Fixed.
8595 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8596 except NULL ciphers". This means the default cipher list will no longer
8597 enable NULL ciphers. They need to be specifically enabled e.g. with
8598 the string "DEFAULT:eNULL".
8601 *) Fix to RSA private encryption routines: if p < q then it would
8602 occasionally produce an invalid result. This will only happen with
8603 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8606 *) Be less restrictive and allow also `perl util/perlpath.pl
8607 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8608 because this way one can also use an interpreter named `perl5' (which is
8609 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8610 installed as `perl').
8611 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8613 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8614 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8616 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8617 advapi32.lib to Win32 build and change the pem test comparision
8618 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8619 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8620 and crypto/des/ede_cbcm_enc.c.
8623 *) DES quad checksum was broken on big-endian architectures. Fixed.
8626 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8627 Win32 test batch file so it (might) work again. The Win32 test batch file
8628 is horrible: I feel ill....
8631 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8632 in e_os.h. Audit of header files to check ANSI and non ANSI
8633 sections: 10 functions were absent from non ANSI section and not exported
8634 from Windows DLLs. Fixed up libeay.num for new functions.
8637 *) Make `openssl version' output lines consistent.
8638 [Ralf S. Engelschall]
8640 *) Fix Win32 symbol export lists for BIO functions: Added
8641 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8642 to ms/libeay{16,32}.def.
8643 [Ralf S. Engelschall]
8645 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8646 fine under Unix and passes some trivial tests I've now added. But the
8647 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8648 added to make sure no one expects that this stuff really works in the
8649 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8650 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8652 [Ralf S. Engelschall]
8654 *) Fix the generation of two part addresses in perl.
8655 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8657 *) Add config entry for Linux on MIPS.
8658 [John Tobey <jtobey@channel1.com>]
8660 *) Make links whenever Configure is run, unless we are on Windoze.
8663 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8664 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8668 *) Add a useful kludge to allow package maintainers to specify compiler and
8669 other platforms details on the command line without having to patch the
8670 Configure script everytime: One now can use ``perl Configure
8671 <id>:<details>'', i.e. platform ids are allowed to have details appended
8672 to them (seperated by colons). This is treated as there would be a static
8673 pre-configured entry in Configure's %table under key <id> with value
8674 <details> and ``perl Configure <id>'' is called. So, when you want to
8675 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8676 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8677 now, which overrides the FreeBSD-elf entry on-the-fly.
8678 [Ralf S. Engelschall]
8680 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8683 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8684 on the `perl Configure ...' command line. This way one can compile
8685 OpenSSL libraries with Position Independent Code (PIC) which is needed
8686 for linking it into DSOs.
8687 [Ralf S. Engelschall]
8689 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8693 *) Cleaned up the LICENSE document: The official contact for any license
8694 questions now is the OpenSSL core team under openssl-core@openssl.org.
8695 And add a paragraph about the dual-license situation to make sure people
8696 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8697 to the OpenSSL toolkit.
8698 [Ralf S. Engelschall]
8700 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8701 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8702 Additonally cleaned up the `make links' target: Remove unnecessary
8703 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8704 to speed processing and no longer clutter the display with confusing
8705 stuff. Instead only the actually done links are displayed.
8706 [Ralf S. Engelschall]
8708 *) Permit null encryption ciphersuites, used for authentication only. It used
8709 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8710 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8714 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8715 signed attributes when verifying signatures (this would break them),
8716 the detached data encoding was wrong and public keys obtained using
8717 X509_get_pubkey() weren't freed.
8720 *) Add text documentation for the BUFFER functions. Also added a work around
8721 to a Win95 console bug. This was triggered by the password read stuff: the
8722 last character typed gets carried over to the next fread(). If you were
8723 generating a new cert request using 'req' for example then the last
8724 character of the passphrase would be CR which would then enter the first
8728 *) Added the new `Includes OpenSSL Cryptography Software' button as
8729 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8730 button and can be used by applications based on OpenSSL to show the
8731 relationship to the OpenSSL project.
8732 [Ralf S. Engelschall]
8734 *) Remove confusing variables in function signatures in files
8735 ssl/ssl_lib.c and ssl/ssl.h.
8736 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8738 *) Don't install bss_file.c under PREFIX/include/
8739 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8741 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8742 functions that return function pointers and has support for NT specific
8743 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8744 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8745 unsigned to signed types: this was killing the Win32 compile.
8748 *) Add new certificate file to stack functions,
8749 SSL_add_dir_cert_subjects_to_stack() and
8750 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8751 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8752 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8753 This means that Apache-SSL and similar packages don't have to mess around
8754 to add as many CAs as they want to the preferred list.
8757 *) Experiment with doxygen documentation. Currently only partially applied to
8759 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8760 openssl.doxy as the configuration file.
8763 *) Get rid of remaining C++-style comments which strict C compilers hate.
8764 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8766 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8767 compiled in by default: it has problems with large keys.
8770 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8771 DH private keys and/or callback functions which directly correspond to
8772 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8773 is needed for applications which have to configure certificates on a
8774 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8776 For the RSA certificate situation is makes no difference, but
8777 for the DSA certificate situation this fixes the "no shared cipher"
8778 problem where the OpenSSL cipher selection procedure failed because the
8779 temporary keys were not overtaken from the context and the API provided
8780 no way to reconfigure them.
8781 The new functions now let applications reconfigure the stuff and they
8782 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8783 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8784 non-public-API function ssl_cert_instantiate() is used as a helper
8785 function and also to reduce code redundancy inside ssl_rsa.c.
8786 [Ralf S. Engelschall]
8788 *) Move s_server -dcert and -dkey options out of the undocumented feature
8789 area because they are useful for the DSA situation and should be
8790 recognized by the users.
8791 [Ralf S. Engelschall]
8793 *) Fix the cipher decision scheme for export ciphers: the export bits are
8794 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8795 SSL_EXP_MASK. So, the original variable has to be used instead of the
8796 already masked variable.
8797 [Richard Levitte <levitte@stacken.kth.se>]
8799 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8800 [Richard Levitte <levitte@stacken.kth.se>]
8802 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8803 from `int' to `unsigned int' because it's a length and initialized by
8804 EVP_DigestFinal() which expects an `unsigned int *'.
8805 [Richard Levitte <levitte@stacken.kth.se>]
8807 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8808 script. Instead use the usual Shell->Perl transition trick.
8809 [Ralf S. Engelschall]
8811 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8812 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8813 -noout -modulus' as it's already the case for `openssl rsa -noout
8814 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8815 currently the public key is printed (a decision which was already done by
8816 `openssl dsa -modulus' in the past) which serves a similar purpose.
8817 Additionally the NO_RSA no longer completely removes the whole -modulus
8818 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8820 [Ralf S. Engelschall]
8822 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8823 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8824 [Arne Ansper <arne@ats.cyber.ee>]
8826 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8827 to be added. Now both 'req' and 'ca' can use new objects defined in the
8831 *) Add cool BIO that does syslog (or event log on NT).
8832 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8834 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8835 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8836 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8837 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8840 *) Add preliminary config info for new extension code.
8843 *) Make RSA_NO_PADDING really use no padding.
8844 [Ulf Moeller <ulf@fitug.de>]
8846 *) Generate errors when private/public key check is done.
8849 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8850 for some CRL extensions and new objects added.
8853 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8854 key usage extension and fuller support for authority key id.
8857 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8858 padding method for RSA, which is recommended for new applications in PKCS
8859 #1 v2.0 (RFC 2437, October 1998).
8860 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8861 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8862 against Bleichbacher's attack on RSA.
8863 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8866 *) Updates to the new SSL compression code
8867 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8869 *) Fix so that the version number in the master secret, when passed
8870 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8871 (because the server will not accept higher), that the version number
8872 is 0x03,0x01, not 0x03,0x00
8873 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8875 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8876 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8877 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8880 *) Support for RAW extensions where an arbitrary extension can be
8881 created by including its DER encoding. See apps/openssl.cnf for
8885 *) Make sure latest Perl versions don't interpret some generated C array
8886 code as Perl array code in the crypto/err/err_genc.pl script.
8887 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8889 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8890 not many people have the assembler. Various Win32 compilation fixes and
8891 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8895 *) Modify configure script 'Configure' to automatically create crypto/date.h
8896 file under Win32 and also build pem.h from pem.org. New script
8897 util/mkfiles.pl to create the MINFO file on environments that can't do a
8898 'make files': perl util/mkfiles.pl >MINFO should work.
8901 *) Major rework of DES function declarations, in the pursuit of correctness
8902 and purity. As a result, many evil casts evaporated, and some weirdness,
8903 too. You may find this causes warnings in your code. Zapping your evil
8904 casts will probably fix them. Mostly.
8907 *) Fix for a typo in asn1.h. Bug fix to object creation script
8908 obj_dat.pl. It considered a zero in an object definition to mean
8909 "end of object": none of the objects in objects.h have any zeros
8910 so it wasn't spotted.
8911 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8913 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8914 Masking (CBCM). In the absence of test vectors, the best I have been able
8915 to do is check that the decrypt undoes the encrypt, so far. Send me test
8916 vectors if you have them.
8919 *) Correct calculation of key length for export ciphers (too much space was
8920 allocated for null ciphers). This has not been tested!
8923 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8924 message is now correct (it understands "crypto" and "ssl" on its
8925 command line). There is also now an "update" option. This will update
8926 the util/ssleay.num and util/libeay.num files with any new functions.
8928 perl util/mkdef.pl crypto ssl update
8929 it will update them.
8932 *) Overhauled the Perl interface (perl/*):
8933 - ported BN stuff to OpenSSL's different BN library
8934 - made the perl/ source tree CVS-aware
8935 - renamed the package from SSLeay to OpenSSL (the files still contain
8936 their history because I've copied them in the repository)
8937 - removed obsolete files (the test scripts will be replaced
8938 by better Test::Harness variants in the future)
8939 [Ralf S. Engelschall]
8941 *) First cut for a very conservative source tree cleanup:
8942 1. merge various obsolete readme texts into doc/ssleay.txt
8943 where we collect the old documents and readme texts.
8944 2. remove the first part of files where I'm already sure that we no
8945 longer need them because of three reasons: either they are just temporary
8946 files which were left by Eric or they are preserved original files where
8947 I've verified that the diff is also available in the CVS via "cvs diff
8948 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8949 the crypto/md/ stuff).
8950 [Ralf S. Engelschall]
8952 *) More extension code. Incomplete support for subject and issuer alt
8953 name, issuer and authority key id. Change the i2v function parameters
8954 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8955 what that's for :-) Fix to ASN1 macro which messed up
8956 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8959 *) Preliminary support for ENUMERATED type. This is largely copied from the
8963 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8964 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8966 *) Make sure `make rehash' target really finds the `openssl' program.
8967 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8969 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8970 like to hear about it if this slows down other processors.
8973 *) Add CygWin32 platform information to Configure script.
8974 [Alan Batie <batie@aahz.jf.intel.com>]
8976 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8977 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8979 *) New program nseq to manipulate netscape certificate sequences
8982 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8986 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8987 but the BN code had some problems that would cause failures when
8988 doing certificate verification and some other functions.
8989 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8991 *) Add ASN1 and PEM code to support netscape certificate sequences.
8994 *) Add ASN1 and PEM code to support netscape certificate sequences.
8997 *) Add several PKIX and private extended key usage OIDs.
9000 *) Modify the 'ca' program to handle the new extension code. Modify
9001 openssl.cnf for new extension format, add comments.
9004 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9005 and add a sample to openssl.cnf so req -x509 now adds appropriate
9009 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9010 error code, add initial support to X509_print() and x509 application.
9013 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9014 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9015 stuff is currently isolated and isn't even compiled yet.
9018 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9019 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9020 Removed the versions check from X509 routines when loading extensions:
9021 this allows certain broken certificates that don't set the version
9022 properly to be processed.
9025 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9026 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9027 can still be regenerated with "make depend".
9030 *) Spelling mistake in C version of CAST-128.
9031 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9033 *) Changes to the error generation code. The perl script err-code.pl
9034 now reads in the old error codes and retains the old numbers, only
9035 adding new ones if necessary. It also only changes the .err files if new
9036 codes are added. The makefiles have been modified to only insert errors
9037 when needed (to avoid needlessly modifying header files). This is done
9038 by only inserting errors if the .err file is newer than the auto generated
9039 C file. To rebuild all the error codes from scratch (the old behaviour)
9040 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9041 or delete all the .err files.
9044 *) CAST-128 was incorrectly implemented for short keys. The C version has
9045 been fixed, but is untested. The assembler versions are also fixed, but
9046 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9047 to regenerate it if needed.
9048 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9049 Hagino <itojun@kame.net>]
9051 *) File was opened incorrectly in randfile.c.
9052 [Ulf Möller <ulf@fitug.de>]
9054 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9055 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9056 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9057 al: it's just almost always a UTCTime. Note this patch adds new error
9058 codes so do a "make errors" if there are problems.
9061 *) Correct Linux 1 recognition in config.
9062 [Ulf Möller <ulf@fitug.de>]
9064 *) Remove pointless MD5 hash when using DSA keys in ca.
9065 [Anonymous <nobody@replay.com>]
9067 *) Generate an error if given an empty string as a cert directory. Also
9068 generate an error if handed NULL (previously returned 0 to indicate an
9069 error, but didn't set one).
9070 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9072 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9075 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9076 parameters. This was causing a warning which killed off the Win32 compile.
9079 *) Remove C++ style comments from crypto/bn/bn_local.h.
9080 [Neil Costigan <neil.costigan@celocom.com>]
9082 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9083 based on a text string, looking up short and long names and finally
9084 "dot" format. The "dot" format stuff didn't work. Added new function
9085 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9086 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9087 OID is not part of the table.
9090 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9091 X509_LOOKUP_by_alias().
9094 *) Sort openssl functions by name.
9097 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9098 encryption from sample DSA keys (in case anyone is interested the password
9102 *) Make _all_ *_free functions accept a NULL pointer.
9103 [Frans Heymans <fheymans@isaserver.be>]
9105 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9107 [Anonymous <nobody@replay.com>]
9109 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9110 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9112 *) Don't blow it for numeric -newkey arguments to apps/req.
9113 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9115 *) Temp key "for export" tests were wrong in s3_srvr.c.
9116 [Anonymous <nobody@replay.com>]
9118 *) Add prototype for temp key callback functions
9119 SSL_CTX_set_tmp_{rsa,dh}_callback().
9122 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9123 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9126 *) X509_name_add_entry() freed the wrong thing after an error.
9127 [Arne Ansper <arne@ats.cyber.ee>]
9129 *) rsa_eay.c would attempt to free a NULL context.
9130 [Arne Ansper <arne@ats.cyber.ee>]
9132 *) BIO_s_socket() had a broken should_retry() on Windoze.
9133 [Arne Ansper <arne@ats.cyber.ee>]
9135 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9136 [Arne Ansper <arne@ats.cyber.ee>]
9138 *) Make sure the already existing X509_STORE->depth variable is initialized
9139 in X509_STORE_new(), but document the fact that this variable is still
9140 unused in the certificate verification process.
9141 [Ralf S. Engelschall]
9143 *) Fix the various library and apps files to free up pkeys obtained from
9144 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9147 *) Fix reference counting in X509_PUBKEY_get(). This makes
9148 demos/maurice/example2.c work, amongst others, probably.
9149 [Steve Henson and Ben Laurie]
9151 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9152 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9153 are no longer created. This way we have a single and consistent command
9154 line interface `openssl <command>', similar to `cvs <command>'.
9155 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9157 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9158 BIT STRING wrapper always have zero unused bits.
9161 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9164 *) Make the top-level INSTALL documentation easier to understand.
9167 *) Makefiles updated to exit if an error occurs in a sub-directory
9168 make (including if user presses ^C) [Paul Sutton]
9170 *) Make Montgomery context stuff explicit in RSA data structure.
9173 *) Fix build order of pem and err to allow for generated pem.h.
9176 *) Fix renumbering bug in X509_NAME_delete_entry().
9179 *) Enhanced the err-ins.pl script so it makes the error library number
9180 global and can add a library name. This is needed for external ASN1 and
9181 other error libraries.
9184 *) Fixed sk_insert which never worked properly.
9187 *) Fix ASN1 macros so they can handle indefinite length construted
9188 EXPLICIT tags. Some non standard certificates use these: they can now
9192 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9193 into a single doc/ssleay.txt bundle. This way the information is still
9194 preserved but no longer messes up this directory. Now it's new room for
9195 the new set of documenation files.
9196 [Ralf S. Engelschall]
9198 *) SETs were incorrectly DER encoded. This was a major pain, because they
9199 shared code with SEQUENCEs, which aren't coded the same. This means that
9200 almost everything to do with SETs or SEQUENCEs has either changed name or
9201 number of arguments.
9202 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9204 *) Fix test data to work with the above.
9207 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9208 was already fixed by Eric for 0.9.1 it seems.
9209 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9211 *) Autodetect FreeBSD3.
9214 *) Fix various bugs in Configure. This affects the following platforms:
9218 unixware-2.0-pentium
9222 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9223 before they are needed.
9226 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9230 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9232 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9233 changed SSLeay to OpenSSL in version strings.
9234 [Ralf S. Engelschall]
9236 *) Some fixups to the top-level documents.
9239 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9240 because the symlink to include/ was missing.
9241 [Ralf S. Engelschall]
9243 *) Incorporated the popular no-RSA/DSA-only patches
9244 which allow to compile a RSA-free SSLeay.
9245 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9247 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9248 when "ssleay" is still not found.
9249 [Ralf S. Engelschall]
9251 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9252 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9254 *) Updated the README file.
9255 [Ralf S. Engelschall]
9257 *) Added various .cvsignore files in the CVS repository subdirs
9258 to make a "cvs update" really silent.
9259 [Ralf S. Engelschall]
9261 *) Recompiled the error-definition header files and added
9262 missing symbols to the Win32 linker tables.
9263 [Ralf S. Engelschall]
9265 *) Cleaned up the top-level documents;
9266 o new files: CHANGES and LICENSE
9267 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9268 o merged COPYRIGHT into LICENSE
9269 o removed obsolete TODO file
9270 o renamed MICROSOFT to INSTALL.W32
9271 [Ralf S. Engelschall]
9273 *) Removed dummy files from the 0.9.1b source tree:
9274 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9275 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9276 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9277 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9278 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9279 [Ralf S. Engelschall]
9281 *) Added various platform portability fixes.
9284 *) The Genesis of the OpenSSL rpject:
9285 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9286 Young and Tim J. Hudson created while they were working for C2Net until
9288 [The OpenSSL Project]
9291 Changes between 0.9.0b and 0.9.1b [not released]
9293 *) Updated a few CA certificates under certs/
9296 *) Changed some BIGNUM api stuff.
9299 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9300 DGUX x86, Linux Alpha, etc.
9303 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9304 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9308 *) Add -strparse option to asn1pars program which parses nested
9310 [Dr Stephen Henson <shenson@bigfoot.com>]
9312 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9315 *) DSA fix for "ca" program.
9318 *) Added "-genkey" option to "dsaparam" program.
9321 *) Added RIPE MD160 (rmd160) message digest.
9324 *) Added -a (all) option to "ssleay version" command.
9327 *) Added PLATFORM define which is the id given to Configure.
9330 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9333 *) Extended the ASN.1 parser routines.
9336 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9339 *) Added a BN_CTX to the BN library.
9342 *) Fixed the weak key values in DES library
9345 *) Changed API in EVP library for cipher aliases.
9348 *) Added support for RC2/64bit cipher.
9351 *) Converted the lhash library to the crypto/mem.c functions.
9354 *) Added more recognized ASN.1 object ids.
9357 *) Added more RSA padding checks for SSL/TLS.
9360 *) Added BIO proxy/filter functionality.
9363 *) Added extra_certs to SSL_CTX which can be used
9364 send extra CA certificates to the client in the CA cert chain sending
9365 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9368 *) Now Fortezza is denied in the authentication phase because
9369 this is key exchange mechanism is not supported by SSLeay at all.
9372 *) Additional PKCS1 checks.
9375 *) Support the string "TLSv1" for all TLS v1 ciphers.
9378 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9379 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9382 *) Fixed a few memory leaks.
9385 *) Fixed various code and comment typos.
9388 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9389 bytes sent in the client random.
9390 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob